[1] The verb "to jump" only dates from the beginning of the 16th
century. The _New English Dictionary_ takes it to be of onomatopoeic
origin and does not consider a connexion with Dan. _gumpe_, Icel.
_goppa_, &c., possible. The earlier English word is "leap" (O.E.
_hléapan_, to run, jump, cf. Ger. _laufen_).
JUMPING-HARE, the English equivalent of springhaas, the Boer name of a
large leaping south and east African rodent mammal, _Pedetes caffer_,
typifying a family by itself, the _Pedetidae_. Originally classed with
the jerboas, to which it has no affinity, this remarkable rodent
approximates in the structure of its skull to the porcupine-group, near
which it is placed by some naturalists, although others consider that
its true position is with the African scaly-tailed flying squirrels
(_Anomaluridae_). The colour of the creature is bright rufous fawn; the
eyes are large; and the bristles round the muzzle very long, the former
having a fringe of long hairs. The front limbs are short, and the hind
ones very long; and although the fore-feet have five toes, those of the
hind-feet are reduced to four. The bones of the lower part of the hind
leg (tibia and fibula) are united for a great part of their length.
There are four pairs of cheek-teeth in each jaw, which do not develop
roots. The jumping-hare is found in open or mountainous districts, and
has habits very like a jerboa. It is nocturnal, and dwells in composite
burrows excavated and tenanted by several families. When feeding it
progresses on all four legs, but if frightened takes gigantic leaps on
the hind-pair alone; the length of such leaps frequently reaches twenty
feet, or even more. The young are generally three or four in number, and
are born in the summer. A second smaller species has been named. (See
RODENTIA.)
JUMPING-MOUSE, the name of a North American mouse-like rodent, _Zapus
hudsonius_, belonging to the family _Jaculidae_ (_Dipodidae_), and the
other members of the same genus. Although mouse-like in general
appearance, these rodents are distinguished by their elongated hind
limbs, and, typically, by the presence of four pairs of cheek-teeth in
each jaw. There are five toes to all the feet, but the first in the
fore-feet is rudimentary, and furnished with a flat nail. The cheeks are
provided with pouches. Jumping-mice were long supposed to be confined to
North America, but a species is now known from N.W. China. It is
noteworthy that whereas E. Coues in 1877 recognized but a single
representative of this genus, ranging over a large area in North
America, A. Preble distinguishes no fewer than twenty North American
species and sub-species, in addition to the one from Szechuen. Among
these, it may be noted that _Z. insignis_ differs from the typical _Z.
hudsonius_ by the loss of the premolar, and has accordingly been
referred to a sub-genus apart. Moreover, the Szechuen jumping-mouse
differs from the typical _Zapus_ by the closer enamel-folds of the
molars, the shorter ears, and the white tail-tip, and is therefore made
the type of another sub-genus. In America these rodents inhabit forest,
pasture, cultivated fields or swamps, but are nowhere numerous. When
disturbed, they start off with enormous bounds of eight or ten feet in
length, which soon diminish to three or four; and in leaping the feet
scarcely seem to touch the ground. The nest is placed in clefts of
rocks, among timber or in hollow trees, and there are generally three
litters in a season. (See RODENTIA.)
JUMPING-SHREW, a popular name for any of the terrestrial insectivora of
the African family _Macroscelididae_, of which there are a number of
species ranging over the African continent, representing the tree-shrews
of Asia. They are small long-snouted gerbil-like animals, mainly
nocturnal, feeding on insects, and characterized by the great length of
the metatarsal bones, which have been modified in accordance with their
leaping mode of progression. In some (constituting the genus
_Rhyncocyon_) the muzzle is so much prolonged as to resemble a
proboscis, whence the name elephant-shrews is sometimes applied to the
members of the family.
JUNAGARH, or JUNAGADH, a native state of India, within the Gujarat
division of Bombay, extending inland from the southern coast of the
peninsula of Kathiawar. Area, 3284 sq. m.; pop. (1901), 395,428, showing
a decrease of 19% in the decade, owing to famine; estimated gross
revenue, £174,000; tribute to the British government and the gaekwar of
Baroda, £4200; a considerable sum is also received as tribute from minor
states in Kathiawar. The state is traversed by a railway from Rajkot, to
the seaport of Verawal. It includes the sacred mountain of Girnar and
the ruined temple of Somnath, and also the forest of Gir, the only place
in India where the lion survives. Junagarh ranks as a first-class state
among the many chiefships of Kathiawar, and its ruler first entered into
engagements with the British in 1807. Nawab Sir Rasul Khanji, K.C.S.I.,
was born in 1858 and succeeded his brother in 1892.
The modern town of JUNAGARH (34,251), 60 m. by rail S. of Rajkot, is
handsomely built and laid out. In November 1897 the foundation-stones of
a hospital, library and museum were laid, and an arts college has
recently been opened.
JUNCACEAE (rush family), in botany, a natural order of flowering plants
belonging to the series Liliiflorae of the class Monocotyledons,
containing about two hundred species in seven genera, widely distributed
in temperate and cold regions. It is well represented in Britain by the
two genera which comprise nearly the whole order--_Juncus_, rush, and
_Luzula_, woodrush. They are generally perennial herbs with a creeping
underground stem and erect, unbranched, aerial stems, bearing slender
leaves which are grass-like or cylindrical or reduced to membranous
sheaths. The small inconspicuous flowers are generally more or less
crowded in terminal or lateral clusters, the form of the inflorescence
varying widely according to the manner of branching and the length of
the pedicels. The flowers are hermaphrodite and regular, with the same
number and arrangement of parts as in the order Liliaceae, from which
they differ in the inconspicuous membranous character of the perianth,
the absence of honey or smell, and the brushlike stigmas with long
papillae-adaptations to wind-pollination as contrasted with the methods
of pollination by insect agency, which characterize the Liliaceae.
Juncaceae are, in fact, a less elaborated group of the same series as
Liliaceae, but adapted to a simpler and more uniform environment than
that larger and much more highly developed family.
[Illustration: _Juncus effusus_, common rush.
1. Plant.
2. Inflorescence.
3. End of branch of inflorescence, slightly enlarged.
4. Flower, enlarged.
5. Fruit, enlarged.
6. Seed.
7. Seed, much enlarged.]
JUNCTION CITY, a city and the county-seat of Geary county, Kansas,
U.S.A., between Smoky Hill and Republican rivers, about 3 m. above their
confluence to form the Kansas, and 72 m. by rail W. of Topeka. Pop.
(1900), 4695, of whom 545 were foreign-born and 292 were negroes;
(1905), 5494; (1910), 5598. Junction City is served by the Union Pacific
and the Missouri, Kansas & Texas railways. It is the commercial centre
of a region in whose fertile valleys great quantities of wheat, Indian
corn, oats and hay are grown and live stock is raised, and whose uplands
contain extensive beds of limestone, which is quarried for building
purposes. Excellent water-power is available and is partly utilized by
flour mills. The municipality owns and operates the water-works. At the
confluence of Smoky Hill and Republican rivers and connected with the
city by an electric railway is Fort Riley, a U.S. military post, which
was established in 1853 as Camp Centre but was renamed in the same year
in honour of General Bennett Riley (1787-1853); in 1887 the mounted
service school of the U.S. army was established here. Northward from the
post is a rugged country over which extends a military reservation of
about 19,000 acres. Adjoining the reservation and about 5 m. N.E. of
Junction City is the site of the short-lived settlement of Pawnee, where
from the 2nd to the 6th of July 1855 the first Kansas legislature met,
in a building the ruins of which still remain; the establishment of
Pawnee (in December 1854) was a speculative pro-slavery enterprise
conducted by the commandant of Fort Riley, other army officers and
certain territorial officials, and when a government survey showed that
the site lay within the Fort Riley reservation, the settlers were
ordered (August 1855) to leave, and the commandant of Fort Riley was
dismissed from the army; one of the charges brought against Governor A.
H. Reeder was that he had favoured the enterprise. Junction City was
founded in 1857 and was chartered as a city in 1859.
JUNE, the sixth month in the Christian calendar, consisting of thirty
days. Ovid (_Fasti_, vi. 25) makes Juno assert that the name was
expressly given in her honour. Elsewhere (_Fasti_, vi. 87) he gives the
derivation _a junioribus_, as May had been derived from _majores_, which
may be explained as in allusion either to the two months being dedicated
respectively to youth and age in general, or to the seniors and juniors
of the government of Rome, the senate and the _comitia curiata_ in
particular. Others connect the term with the gentile name Junius, or
with the consulate of Junius Brutus. Probably, however, it originally
denoted the month in which crops grow to ripeness. In the old Latin
calendar June was the fourth month, and in the so-called year of Romulus
it is said to have had thirty days; but at the time of the Julian reform
of the calendar its days were only twenty-nine. To these Caesar added
the thirtieth. The Anglo-Saxons called June "the dry month," "midsummer
month," and, in contradistinction to July, "the earlier mild month." The
summer solstice occurs in June. Principal festival days in this month:
11th June, St Barnabas; 24th June, Midsummer Day (Nativity of St John
the Baptist); 29th June, St Peter.
JUNEAU, formerly HARRISBURG, a mining and trading town picturesquely
situated at the mouth of Gold Creek on the continental shore of
Gastineau channel, south-east Alaska, and the capital of Alaska. Pop.
(1900), 1864 (450 Indians); (1910), 1644. It has a United States
custom-house and court-house. The city has fishing, manufacturing and
trading interests, but its prosperity is chiefly due to the gold mines
in the adjacent Silver Bow basin, the source of Gold Creek, and the site
of the great Perseverance mine, and to those on the Treadwell lode on
Douglas Island, 2 m. from Juneau. Placer gold was found at the mouth of
the creek in 1879, and the city was settled in 1880 by two prospectors
named Joseph Juneau and Richard Harris. The district was called Juneau
and the camp Harrisburg by the first settlers; exploring naval officers
named the camp Rockwell, in honour of Commander Charles Henry Rockwell,
U.S.N. (b. 1840). A town meeting then adopted the name of Juneau. The
town was incorporated in 1900. In October 1906 the seat of government of
Alaska was removed from Sitka to Juneau.
JUNG, JOHANN HEINRICH (1740-1817), best known by his assumed name of
HEINRICH STILLING, German author, was born in the vlllage of Grund near
Hilchenbach in Westphalia on the 12th of September 1740. His father,
Wilhelm Jung, schoolmaster and tailor, was the son of Eberhard Jung,
charcoal-burner, and his mother was Dortchen Moritz, daughter of a poor
clergyman. Jung became, by his father's desire, schoolmaster and tailor,
but found both pursuits equally wearisome. After various teaching
appointments he went in 1768 with "half a French dollar" to study
medicine at the university of Strassburg. There he met Goethe, who
introduced him to Herder. The acquaintance with Goethe ripened into
friendship; and it was by his influence that Jung's first and best work,
_Heinrich Stillings Jugend_ was written. In 1772 he settled at Elberfeld
as physician and oculist, and soon became celebrated for operations in
cases of cataract. Surgery, however, was not much more to his taste than
tailoring or teaching; and in 1778 he was glad to accept the appointment
of lecturer on "agriculture, technology, commerce and the veterinary
art" in the newly established Kameralschule at Kaiserslautern, a post
which he continued to hold when the school was absorbed in the
university of Heidelberg. In 1787 he was appointed professor of
economical, financial and statistical science in the university of
Marburg. In 1803 he resigned his professorship and returned to
Heidelberg, where he remained until 1806, when he received a pension
from the grand-duke Charles Frederick of Baden, and removed to
Karlsruhe, where he remained until his death on the 2nd of April 1817.
He was married three times, and left a numerous family. Of his works his
autobiography _Heinrich Stillings Leben_, from which he came to be known
as Stilling, is the only one now of any interest, and is the chief
authority for his life. His early novels reflect the piety of his early
surroundings.
A complete edition of his numerous works, in 14 vols. 8vo, was
published at Stuttgart in 1835-1838. There are English translations by
Sam. Jackson of the Leben (1835) and of the _Theorie der Geisterkunde_
(London, 1834, and New York, 1851); and of _Theobald, or the Fanatic_,
a religious romance, by the Rev. Sam. Schaeffer (1846). See
biographies by F. W. Bodemann (1868), J. v. Ewald (1817), Peterson
(1890).
JUNG BAHADUR, SIR, MAHARAJAH (1816-1877), prime minister of Nepal, was a
grand-nephew of Bhim sena Thapa (Bhim sen Thappa), the famous military
minister of Nepal, who from 1804 to 1839 was _de facto_ ruler of the
state under the rani Tripuri and her successor. Bhimsena's supremacy was
threatened by the Kala Pandry, and many of his relations, including Jung
Bahadur, went into exile in 1838, thus escaping the cruel fate which
overtook Bhimsena in the following year. The Pandry leaders, who then
reverted to power, were in turn assassinated in 1843, and Matabar Singh,
uncle of Jung Bahadur, was created prime minister. He appointed his
nephew general and chief judge, but shortly afterwards he was himself
put to death. Fateh Jung thereon formed a ministry, of which Jung
Bahadur was made military member. In the following year, 1846, a quarrel
was fomented, in which Fateh Jung and thirty-two other chiefs were
assassinated, and the rani appointed Jung Bahadur sole minister. The
rani quickly changed her mind, and planned the death of her new
minister, who at once appealed to the maharaja. But the plot failed. The
raja and the rani wisely sought safety in India, and Jung Bahadur firmly
established his own position by the removal of all dangerous rivals. He
succeeded so well that in January 1850 he was able to leave for a visit
to England, from which he did not return to Nepal until the 6th of
February 1851. On his return, and frequently on subsequent dates, he
frustrated conspiracies for his assassination. The reform of the penal
code, and a desultory war with Tibet, occupied his attention until news
of the Indian Mutiny reached Nepal. Jung Bahadur resisted all overtures
from the rebels, and sent a column to Gorakpur in July 1857. In December
he furnished a force of 8000 Gurkhas, which reached Lucknow on the 11th
of March 1858, and took part in the siege. The moral support of the
Nepalese was more valuable even than the military services rendered by
them. Jung Bahadur was made a G.C.B., and a tract of country annexed in
1815 was restored to Nepal. Various frontier disputes were settled, and
in 1875 Sir Jung Bahadur was on his way to England when he had a fall
from his horse in Bombay and returned home. He received a visit from the
Prince of Wales in 1876. On the 25th of February 1877 he died, having
reached the age of sixty-one. Three of his widows immolated themselves
on his funeral pyre. (W. L.-W.)
JUNG-BUNZLAU (Czech, _Mladá Boleslav_), a town of Bohemia, 44 m. N.N.E.
of Prague by rail. Pop. (1900), 13,479, mostly Czech. The town contains
several old buildings of historical interest, notably the castle, built
towards the end of the 10th century, and now used as barracks. There are
several old churches. In that of St Maria the celebrated bishop of the
Bohemian brethren, Johann August, was buried in 1595; but his tomb was
destroyed in 1621. The church of St Bonaventura with the convent,
originally belonging to the friars minor and later to the Bohemian
brethren, is now a Piaristic college. The church of St Wenceslaus, once
a convent of the brotherhood, is now used for military stores.
Jung-Bunzlau was built in 995, under Boleslaus II., as the seat of a
_gaugraf_ or royal count. Early in the 13th century it was given the
privileges of a town and pledged to the lords of Michalovic. In the
Hussite wars Jung-Bunzlau adhered to the Taborites and became later the
metropolis of the Bohemian Brethren. In 1595 Bohuslav of Lobkovic sold
his rights as over-lord to the town, which was made a royal city by
Rudolf II. During the Thirty Years' War it was twice burned, in 1631 by
the imperialists, and in 1640 by the Swedes.
JUNGFRAU, a well-known Swiss mountain (13,669 ft.), admirably seen from
Interlaken. It rises on the frontier between the cantons of Bern and of
the Valais, and is reckoned among the peaks of the Bernese Oberland, two
of which (the Finsteraarhorn, 14,026 ft., and the Aletschhorn, 13,721
ft.) surpass it in height. It was first ascended in 1811 by the brothers
Meyer, and again in 1812 by Gottlieb Meyer (son of J. R. Meyer), in both
cases by the eastern or Valais side, the foot of which (the final ascent
being made by the 1811-1812 route) was reached in 1828 over the
Mönchjoch by six peasants from Grindelwald. In 1841 Principal J. D.
Forbes, with Agassiz, Desor and Du Châtelier, made the fourth ascent by
the 1812 route. It was not till 1865 that Sir George Young and the Rev.
H. B. George succeeded in making the first ascent from the west or
Interlaken side. This is a far more difficult route than that from the
east, the latter being now frequently taken in the course of the summer.
(W. A. B. C.)
JUNGLE (Sans. _jangala_), an Anglo-Indian term for a forest, a thicket,
a tangled wilderness. The Hindustani word means strictly waste,
uncultivated ground; then such ground covered with trees or long grass;
and thence again the Anglo-Indian application is to forest or other wild
growth, rather than to the fact that it is not cultivated.
JUNIN, an interior department of central Peru, bounded N. by Huanuco, E.
by Loreto and Cuzco, S. by Huancavelica, and W. by Lima and Ancachs.
Pop. (1906 estimate), 305,700. It lies wholly within the Andean zone and
has an area of 23,353 sq. m. It is rich in minerals, including silver,
copper, mercury, bismuth, molybdenum, lead and coal. The Huallaga and
Mantaro rivers have their sources in this department, the latter in Lake
Junin, or Chanchaycocha, 13,230 ft. above sea-level. The capital of
Junin is Cerro de Pasco, and its two principal towns are Jauja and Tarma
(pop., 1906, about 12,000 and 5000 respectively).
JUNIPER. The junipers, of which there are twenty-five or more species,
are evergreen bushy shrubs or low columnar trees, with a more or less
aromatic odour, inhabiting the whole of the cold and temperate northern
hemisphere, but attaining their maximum development in the Mediterranean
region, the North Atlantic islands, and the eastern United States. The
leaves are usually articulated at the base, spreading, sharp-pointed and
needle-like in form, destitute of oil-glands, and arranged in
alternating whorls of three; but in some the leaves are minute and
scale-like, closely adhering to the branches, the apex only being free,
and furnished with an oil-gland on the back. Sometimes the same plant
produces both kinds of leaves on different branches, or the young plants
produce acicular leaves, while those of the older plants are squamiform.
The male and female flowers are usually produced on separate plants. The
male flowers are developed at the ends of short lateral branches, are
rounded or oblong in form, and consist of several antheriferous scales
in two or three rows, each scale bearing three or six almost spherical
pollen-sacs on its under side. The female flower is a small bud-like
cone situated at the apex of a small branch, and consists of two or
three whorls of two or three scales. The scales of the upper or middle
series each bear one or two erect ovules. The mature cone is fleshy,
with the succulent scales fused together and forming the fruit-like
structure known to the older botanists as the _galbulus_, or berry of
the juniper. The berries are red or purple in colour, varying in size
from that of a pea to a nut. They thus differ considerably from the
cones of other members of the order Coniferae, of _Gymnosperms_ (q.v.),
to which the junipers belong. The seeds are usually three in number,
sometimes fewer (1), rarely more (8), and have the surface near the
middle or base marked with large glands containing oil. The genus occurs
in a fossil state, four species having been described from rocks of
Tertiary age.
The genus is divided into three sections, _Sabina_, _Oxycedrus_ and
_Caryocedrus_. _Juniperus Sabina_ is the savin, abundant on the
mountains of central Europe, an irregularly spreading much-branched
shrub with scale-like glandular leaves, and emitting a disagreeable
odour when bruised. The plant is poisonous, acting as a powerful local
and general stimulant, diaphoretic, emmenagogue and anthelmintic; it was
formerly employed both internally and externally. The oil of savin is
now occasionally used criminally as an abortifacient. _J. bermudiana_, a
tree about 40 or 50 ft. in height, yields a fragrant red wood, which was
used for the manufacture of "cedar" pencils. The tree is now very scarce
in Bermuda, and the "red cedar," _J. virginiana_, of North America is
employed instead for pencils and cigar-boxes. The red cedar is abundant
in some parts of the United States and in Virginia is a tree 50 ft. in
height. It is very widely distributed from the Great Lakes to Florida
and round the Gulf of Mexico, and extends as far west as the Rocky
Mountains and beyond to Vancouver Island. The wood is applied to many
uses in the United States. The fine red fragrant heart-wood takes a high
polish, and is much used in cabinet-work and inlaying, but the small
size of the planks prevents its more extended use. The galls produced at
the ends of the branches have been used in medicine, and the wood yields
cedar-camphor and oil of cedar-wood. _J. thurifera_ is the incense
juniper of Spain and Portugal, and _J. phoenicea_ (_J. lycia_) from the
Mediterranean district is stated by Loudon to be burned as incense.
_J. communis_, the common juniper (see fig.), and several other species,
belong to the section _Oxycedrus_. The common juniper is a very widely
distributed plant, occurring in the whole of northern Europe, central
and northern Asia to Kamchatka, and east and west North America. It
grows at considerable elevations in southern Europe, in the Alps,
Apennines, Pyrenees and Sierra Nevada (4000 to 8000 ft.). It also grows
in Asia Minor, Persia, and at great elevations on the Himalayas. In
Great Britain it is usually a shrub with spreading branches, less
frequently a low tree. In former times the juniper seems to have been a
very well-known plant, the name occurring almost unaltered in many
languages. The Lat. _juniperus_, probably formed from _juni_--crude form
of _juvenis_, fresh, young, and _parere_, to produce, is represented by
Fr. _genièvre_, Sp. _enebro_, Ital. _ginepito_, &c. The dialectical
names, chiefly in European languages, were collected by Prince L. L.
Bonaparte, and published in the _Academy_ (July 17, 1880, No. 428, p.
45). The common juniper is official in the British pharmacopoeia and in
that of the United States, yielding the oil of juniper, a powerful
diuretic, distilled from the unripe fruits. This oil is closely allied
in composition to oil of turpentine and is given in doses of a half to
three minims. The _Spiritus juniperi_ of the British pharmacopoeia is
given in doses up to one drachm. Much safer and more powerful diuretics
are now in use. The wood is very aromatic and is used for ornamental
purposes. In Lapland the bark is made into ropes. The fruits are used
for flavouring gin (a name derived from _juniper_, through Fr.
_genièvre_); and in some parts of France a kind of beer called
_genévrette_ was made from them by the peasants. _J. Oxycedrus_, from
the Mediterranean district and Madeira, yields cedar-oil which is
official in most of the European pharmacopoeias, but not in that of
Britain. This oil is largely used by microscopists in what is known as
the "oil-immersion lens."
The third section, _Caryocedrus_, consists of a single species, _J.
drupacea_ of Asia Minor. The fruits are large and edible: they are known
in the East by the name _habhel_.
[Illustration: (From Bentley and Trimen's _Medicinal Plants_, by
permission of J. & A. Churchill.)
Juniper (_Juniperus communis_).
1. Vertical section of fruit.
2. Male catkin.]
JUNIUS, the pseudonym of a writer who contributed a series of letters to
the London _Public Advertiser_, from the 21st of January 1769 to the
21st of January 1772. The signature had been already used by him in a
letter of the 21st of November 1768, which he did not include in his
collection of the _Letters of Junius_ published in 1772. The name was
chosen in all probability because he had already signed "Lucius" and
"Brutus," and wished to exhaust the name of Lucius Junius Brutus the
Roman patriot. Whoever the writer was, he wrote under other pseudonyms
before, during and after the period between January 1769 and January
1772. He acknowledged that he had written as "Philo-Junius," and there
is evidence that he was identical with "Veteran," "Nemesis" and other
anonymous correspondents of the _Public Advertiser_. There is a marked
distinction between the "letters of Junius" and his so-called
miscellaneous letters. The second deal with a variety of subjects, some
of a purely personal character, as for instance the alleged injustice of
Viscount Barrington the secretary at war to the officials of his
department. But the "letters of Junius" had a definite object--to
discredit the ministry of the duke of Grafton. This administration had
been formed in October 1768, when the earl of Chatham was compelled by
ill health to retire from office, and was a reconstruction of his
cabinet of July 1766. Junius fought for the return to power of Chatham,
who had recovered and was not on good terms with his successors. He
communicated with Chatham, with George Grenville, with Wilkes, all
enemies of the duke of Grafton, and also with Henry Sampson Woodfall,
printer and part owner of the _Public Advertiser_. This private
correspondence has been preserved. It is written in the disguised hand
used by Junius.
The letters are of interest on three grounds--their political
significance, their style, and the mystery which long surrounded their
authorship. As political writings they possess no intrinsic value.
Junius was wholly destitute of insight, and of the power to disentangle,
define and advocate principles. The matter of his letters is always
invective. He began by a general attack on the ministry for their
personal immorality or meanness. An ill-judged defence of one of the
body--the marquess of Granby, commander-in-chief--volunteered by Sir
William Draper, gave him an easy victory over a vulnerable opponent. He
then went on to pour acrimonious abuse on Grafton, on the duke of
Bedford, on King George III. himself in the letter of the 19th of
December 1769, and ended with a most malignant and ignorant assault on
Lord Chief Justice Mansfield. Several of his accusations were shown to
be unfounded. The practical effect of the letters was insignificant.
They were noticed and talked about. They provoked anger and retorts. But
the letter to the king aroused indignation, and though Grafton's
administration fell in January 1770, it was succeeded by the long-lived
cabinet of Lord North. Junius confessed himself beaten, in his private
letter to Woodfall of the 19th of January 1773. He had materially
contributed to his own defeat by his brutal violence. He sinned indeed
in a large company. The employment of personal abuse had been habitual
in English political controversy for generations, and in the 18th
century there was a strong taste for satire. Latin literature, which was
not only studied but imitated, supplied the inspiration and the models,
in the satires of Juvenal, and the speeches of Cicero against Verres and
Catiline.
If, however, Junius was doing what others did, he did it better than
anybody else--a fact which sufficiently explains his rapid popularity.
His superiority lay in his style. Here also he was by no means original,
and he was unequal. There are passages in his writings which can be best
described in the words which Burke applied to another writer: "A mere
mixture of vinegar and water, at once vapid and sour." But at his best
Junius attains to a high degree of artificial elegance and vigour. He
shows the influence of Bolingbroke, of Swift, and above all of Tacitus,
who appears to have been his favourite author. The imitation is never
slavish. Junius adapts, and does not only repeat. The white heat of his
malignity animates the whole. No single sentence will show the quality
of a style which produces its effect by persistence and repetition, but
such a typical passage as follows displays at once the method and the
spirit. It is taken from Letter XLIX. to the duke of Grafton, June 22,
1771:--
"The profound respect I bear to the gracious prince who governs this
country with no less honour to himself than satisfaction to his
subjects, and who restores you to your rank under his standard, will
save you from a multitude of reproaches. The attention I should have
paid to your failings is involuntarily attracted to the hand which
rewards them; and though I am not so partial to the royal judgment as
to affirm that the favour of a king can remove mountains of infamy, it
serves to lessen at least, for undoubtedly it divides, the burden.
While I remember how much is due to his sacred character, I cannot,
with any decent appearance of propriety, call you the meanest and the
basest fellow in the kingdom. I protest, my Lord, I do not think you
so. You will have a dangerous rival in that kind of fame to which you
have hitherto so happily directed your ambition, as long as there is
one man living who thinks you worthy of his confidence, and fit to be
trusted with any share in his government.... With any other prince,
the shameful desertion of him in the midst of that distress, which you
alone had created, in the very crisis of danger, when he fancied he
saw the throne already surrounded by men of virtue and abilities,
would have outweighed the memory of your former services. But his
majesty is full of justice, and understands the doctrine of
compensations; he remembers with gratitude how soon you had
accommodated your morals to the necessities of his service, how
cheerfully you had abandoned the engagements of private friendship,
and renounced the most solemn professions to the public. The
sacrifice of Lord Chatham was not lost on him. Even the cowardice and
perfidy of deserting him may have done you no disservice in his
esteem. The instance was painful, but the principle might please."
What is artificial and stilted in this style did not offend the would-be
classic taste of the 18th century, and does not now conceal the fact
that the laboriously arranged words, and artfully counterbalanced
clauses, convey a venomous hate and scorn.
The pre-established harmony between Junius and his readers accounts for
the rapidity of his success, and for the importance attributed to him by
Burke and Johnson, far better writers than himself. Before 1772 there
appeared at least twelve unauthorized republications of his letters,
made by speculative printers. In that year he revised the collection
named "_Junius: Stat nominis umbra_," with a dedication to the English
people and a preface. Other independent editions followed in quick
succession. In 1801 one was published with annotations by Robert Heron.
In 1806 another appeared with notes by John Almon. The first new edition
of real importance was issued by the Woodfall family in 1812. It
contained the correspondence of Junius with H. S. Woodfall, a selection
of the miscellaneous letters attributed to Junius, facsimiles of his
handwriting, and notes by Dr Mason Good. Curiosity as to the mystery of
the authorship began to replace political and literary interest in the
writings. Junius himself had been early aware of the advantage he
secured by concealment. "The mystery of Junius increases his importance"
is his confession in a letter to Wilkes dated the 18th of September
1771. The calculation was a sound one. For two generations after the
appearance of the letter of the 21st of January 1769, speculations as to
the authorship of Junius were rife, and discussion had hardly ceased in
1910. Joseph Parkes, author with Herman Merivale of the _Memoirs of Sir
Philip Francis_ (1867), gives a list of more than forty persons who had
been supposed to be Junius. They are: Edmund Burke, Lord George
Sackville, Lord Chatham, Colonel Barré, Hugh Macaulay Boyd, Dr Butler,
John Wilkes, Lord Chesterfield, Henry Flood, William Burke, Gibbon, W.
E. Hamilton, Charles Lloyd, Charles Lee (general in the American War of
Independence), John Roberts, George Grenville, James Grenville, Lord
Temple, Duke of Portland, William Greatrakes, Richard Glover, Sir
William Jones, James Hollis, Laughlin Maclean, Philip Rosenhagen, Horne
Tooke, John Kent, Henry Grattan, Daniel Wray, Horace Walpole, Alexander
Wedderburn (Lord Loughborough), Dunning (Lord Ashburton), Lieut.-General
Sir R. Rich, Dr Philip Francis, a "junto" or committee of writers who
used a common name, De Lolme, Mrs Catherine Macaulay (1733-91), Sir
Philip Francis, Lord Littleton, Wolfram Cornwall and Gov. Thomas
Pownall. In the great majority of cases the attribution is based on
nothing more than a vague guess. Edmund Burke denied that he could have
written the letters of Junius if he would, or would have written them if
he could. Grattan pointed out that he was young when they appeared. More
plausible claims, such as those made for Lord Temple and Lord George
Sackville, could not stand the test of examination. Indeed after 1816
the question was not so much "Who wrote Junius?" as "Was Junius Sir
Philip Francis, or some undiscoverable man?" In that year John Taylor
was led by a careful study of Woodfall's edition of 1812 to publish _The
identity of Junius with a distinguished living character established_,
in which he claimed the letters for Sir Philip Francis. He had at first
been inclined to attribute them to Sir Philip's father, Dr Francis, the
author of translations of Horace and Demosthenes. Taylor applied to Sir
Philip, who did not die till 1818, for leave to publish, and received
from him answers which to an unwary person might appear to constitute
denials of the authorship, but were in fact evasions.
The reasons for believing that Sir Philip Francis (q.v.) was Junius are
very strong. His evasions were only to be expected. Several of the men
he attacked lived nearly as long as himself, the sons of others were
conspicuous in society, and King George III. survived him. Sir Philip,
who had held office, who had been decorated, and who in his later years
was ambitious to obtain the governor-generalship of India, dared not
confess that he was Junius. The similarity of his handwriting to the
disguised hand used by the writer of the letters is very close. If Sir
Philip Francis did, as his family maintain, address a copy of verses to
a Miss Giles in the handwriting of Junius (and the evidence that he did
is weighty) there can be no further question as to the identity of the
two. The similarity of Junius and Francis in regard to their opinions,
their likes and dislikes, their knowledge and their known movements,
amount, apart from the handwriting, almost to proof. It is certain that
many felons have been condemned on circumstantial evidence less
complete. The opposition to his claim is based on such assertions as
that his known handwriting was inferior to the feigned hand of Junius,
and that no man can make a disguised hand better than his own. But the
first assertion is unfounded, and the second is a mere expression of
opinion. It is also said that Francis must have been guilty of baseness
if he wrote Junius, but if that explains why he did not avow the
authorship it can be shown to constitute a moral impossibility only by
an examination of his life.
AUTHORITIES.--The best edition of the _Letters of Junius_, properly so
called, with the _Miscellaneous Letters_, is that of J. Ward (1854).
The most valuable contributions to the controversy as to the
authorship are: _The Handwriting of Junius investigated by Charles
Chabot, expert, with preface and collateral evidence by the Hon. E.
Twisleton_ (1871); _Memoirs of Sir Philip Francis, K.C.B._, by Parkes
and Merivale (1867); _Junius Revealed by his Surviving Grandson_, by
H. R. Francis (1894); _The Francis Letters_, edited by Beata Francis
and Eliza Keary, with a note on the Junius controversy by C. F. Keary
(1901); and "Francis, Sir Philip," by Sir Leslie Stephen, in _Dict. of
Nat. Biog._ The case for those who decline to accept the claim of Sir
Philip Francis is stated by C. W. Dilke, _Papers of a Critic_ (1875),
and Abraham Hayward, _More about Junius, Franciscan Theory Unsound_
(1868). (D. H.)
JUNIUS, FRANZ (in French, François du Jon), the name of two Huguenot
scholars.
(1) FRANZ JUNIUS (1545-1602) was born at Bourges in France on the 1st of
May 1545. He had studied law for two years under Hugo Donellus
(1527-1591) when he was given a place in the retinue of the French
ambassador to Constantinople, but before he reached Lyons the ambassador
had departed. Junius found ample consolation in the opportunities for
study at the gymnasium at Lyons. A religious tumult warned him back to
Bourges, where he was cured of certain rationalistic principles that he
had imbibed at Lyons, and he determined to enter the reformed church. He
went in 1562 to study at Geneva, where he was reduced to the direst
poverty by the failure of remittances from home, owing to civil war in
France. He would accept only the barest sustenance from a humble friend
who had himself been a protégé of Junius's family at Bourges, and his
health was permanently injured. The long-expected remittance from home
was closely followed by the news of the brutal murder of his father by a
Catholic fanatic at Issoudun; and Junius resolved to remain at Geneva,
where his reputation enabled him to live by teaching. In 1565, however,
he was appointed minister of the Walloon church at Antwerp. His foreign
birth excluded him from the privileges of the native reformed pastors,
and exposed him to persecution. Several times he barely escaped arrest,
and finally, after spending six months in preaching at Limburg, he was
forced to retire to Heidelberg in 1567. There he was welcomed by the
elector Frederick II., and temporarily settled in charge of the Walloon
church at Schönau; but in 1568 his patron sent him as chaplain with
Prince William of Orange in his unfortunate expedition to the
Netherlands. Junius escaped as soon as he could from that post, and
returning to his church remained there till 1573. From 1573 till 1578 he
was at Heidelberg, assisting Emmanuel Tremellius (1510-1580), whose
daughter he married, in his Latin version of the Old Testament
(Frankfort, 1579); in 1581 he was appointed to the chair of divinity at
Heidelberg. Thence he was taken to France by the duke of Bouillon, and
after an interview with Henry IV. was sent again to Germany on a
mission. As he was returning to France he was named professor of
theology at Leiden, where he died on the 13th of October 1602.
He was a voluminous writer on theological subjects, and translated and
composed many exegetical works. He is best known from his own edition
of the Latin Old Testament, slightly altered from the former joint
edition, and with a version of the New Testament added (Geneva, 1590;
Hanover, 1624). The _Opera Theologica Francisci Junii Biturigis_ were
published at Geneva (2 vols., 1613), to which is prefixed his
autobiography, written about 1592 (new ed., edited by Abraham Kuypers,
1882 seq.). The autobiography had been published at Leiden (1595), and
is reprinted in the _Miscellanea Groningana_, vol. i., along with a
list of the author's other writings.
(2) FRANZ JUNIUS (1589-1677), son of the above, was born at Heidelberg,
and brought up at Leiden. His attention was diverted from military to
theological studies by the peace of 1609 between Spain and the
Netherlands. In 1617 he became pastor at Hillegondsberg, but in 1620
went to England, where he became librarian to Thomas Howard, earl of
Arundel, and tutor to his son. He remained in England thirty years,
devoting himself to the study of Anglo-Saxon, and afterwards of the
cognate old Teutonic languages. His work, intrinsically valuable, is
important as having aroused interest in a frequently neglected subject.
In 1651 he returned to Holland; and for two years lived in Friesland in
order to study the old dialect. In 1675 he returned to England, and
during the next year resided in Oxford; in 1677 he went to live at
Windsor with his nephew, Isaac Vossius, in whose house he died on the
19th of November 1677. He was buried at Windsor in St George's Chapel.
He was pre-eminently a student. He published _De pictura veterum_
(1637) (in English by the author, 1638; enlarged and improved edition,
edited by J. G. Graevius, who prefixed a life of Junius, with a
catalogue of architects, painters, &c., and their works, Rotterdam,
1694); _Observationes in Willerami Abbatis francicam paraphrasin
cantici canticorum_ (Amsterdam, 1655); _Annotationes in harmoniam
latino-francicam quatuor evangelistarum, latine a Tatiano confectam_
(Amsterdam, 1655); _Caedmonis monachi paraphrasis poetica geneseos_
(Amsterdam, 1655) (see criticism under CAEDMON); _Quatuor D.N.I.C.
evangeliorum versiones perantiquae duae, gothica scilicet et
anglo-saxonica_ (Dort, 2 vols., 1665) (the Gothic version in this book
Junius transcribed from the Silver Codex of Ulfilas; the Anglo-Saxon
version is from an edition by Thomas Marshall, whose notes to both
versions are given, and a Gothic glossary by Junius); _Etymologicum
anglicanum_, edited by Edward Lye, and preceded by a life of Junius
and George Hickes's Anglo-Saxon grammar (Oxford, 1743) (its results
require careful verification in the light of modern research). His
rich collection of ancient MSS., edited and annotated by him, Junius
bequeathed to the university of Oxford. Graevius gives a list of them;
the most important are a version of the _Ormulum_, the version of
Caedmon, and 9 volumes containing _Glossarium v. linguarum
septentrionalium_.
JUNK. (1) (Through Port. _junco_, adapted from Javanese _djong_, or
Malayan _adjong_, ship), the name of the native sailing vessel, common
to the far eastern seas, and especially used by the Chinese and
Javanese. It is a flat-bottomed, high-sterned vessel with square bows
and masts carrying lug-sails, often made of matting. (2) A nautical term
for small pieces of disused rope or cable, cut up to make fenders,
oakum, &c., hence applied colloquially by sailors to the salt beef and
pork used on board ship. The word is of doubtful origin, but may be
connected with "junk" (Lat. _juncus_), a reed, or rush. This word is now
obsolete except as applied to a form of surgical appliance, used as a
support in cases of fracture where immediate setting is impossible, and
consisting of a shaped pillow or cushion stuffed with straw or
horsehair, formerly with rushes or reeds.
JUNKER, WILHELM (1840-1892), German explorer of Africa, was born at
Moscow on the 6th of April 1840. He studied medicine at Dorpat,
Göttingen, Berlin and Prague, but did not practise for long. After a
series of short journeys to Iceland, Tunis and Lower Egypt, he remained
almost continuously in eastern Equatorial Africa from 1875 to 1886,
making first Khartum and afterwards Lado the base of his expeditions,
Junker was a leisurely traveller and a careful observer; his main object
was to study the peoples with whom he came into contact, and to collect
specimens of plants and animals, and the result of his investigations in
these particulars is given in his _Reisen in Afrika_ (3 vols., Vienna,
1889-1891), a work of high merit. An English translation by A. H. Keane
was published in 1890-1892. Perhaps the greatest service he rendered to
geographical science was his investigation of the Nile-Congo watershed,
when he successfully combated Georg Schweinfurth's hydrographical
theories and established the identity of the Welle and Ubangi. The
Mahdist rising prevented his return to Europe through the Sudan, as he
had planned to do, in 1884, and an expedition, fitted out in 1885 by his
brother in St Petersburg, failed to reach him. Junker then determined to
go south. Leaving Wadelai on the 2nd of January 1886 he travelled by way
of Uganda and Tabora and reached Zanzibar in December 1886. In 1887 he
received the gold medal of the Royal Geographical Society. As an
explorer Junker is entitled to high rank, his ethnographical
observations in the Niam-Niam (Azandeh) country being especially
valuable. He died at St Petersburg on the 13th of February 1892.
See the biographical notice by E. G. Ravenstein in _Proceedings of the
Royal Geographical Society_ (1892), pp. 185-187.
JUNKET, a dish of milk curdled by rennet, served with clotted cream and
flavoured with nutmeg, which is particularly associated in England with
Devonshire and Cornwall. The word is of somewhat obscure history. It
appears to come through O. Fr. _jonquette_, a rush-basket, from Lat.
_juncus_, rush. In Norman dialect this word is used of a cream cheese.
The commonly accepted origin is that it refers to the rush-basket on
which such cream cheeses or curds were served. _Juncade_ appears in
Rabelais, and is explained by Cotgrave as "spoon-meat, rose-water and
sugar." Nicholas Udall (in his translation of Erasmus's _Apophthegms_,
1542) speaks of "marchepaines or wafers with other like junkerie." The
word "junket" is also used for a festivity or picnic.
JUNO, the chief Roman and Latin goddess, and the special object of
worship by women at all the critical moments of life. The etymology of
the name is not certain, but it is usually taken as a shortened form of
_Jovino_, answering to _Jovis_, from a root _div_, shining. Under Greek
influence Juno was early identified with the Greek Hera, with whose cult
and characteristics she has much in common; thus the Juno with whom we
are familiar in Latin literature is not the true Roman deity. In the
_Aeneid_, for example, her policy is antagonistic to the plans of
Jupiter for the conquest of Latium and the future greatness of Rome;
though in the fourth _Eclogue_, as Lucina, she appears in her proper
rôle as assisting at childbirth. It was under Greek influence again that
she became the wife of Jupiter, the mother of Mars; the true Roman had
no such personal interest in his deities as to invent family relations
for them.
That Juno was especially a deity of women, and represents in a sense the
female principle of life, is seen in the fact that as every man had his
_genius_, so every woman had her Juno; and the goddess herself may have
been a development of this conception. The various forms of her cult all
show her in close connexion with women. As Juno Lucina she was invoked
in childbirth, and on the 1st of March, the old Roman New Year's day,
the matrons met and made offerings at her temple in a grove on the
Esquiline; hence the day was known as the _Matronalia_. As _Caprotina_
she was especially worshipped by female slaves on the 7th of July
(_Nonae Caprotinae_); as _Sospita_ she was invoked all over Latium as
the saviour of women in their perils, and later as the saviour of the
state; and under a number of other titles, _Cinxia_, _Unxia_, _Pronuba_,
&c., we find her taking a leading part in the ritual of marriage. Her
real or supposed connexion with the moon is explained by the alleged
influence of the moon on the lives of women; thus she became the deity
of the Kalends, or day of the new moon, when the _regina sacrorum_
offered a lamb to her in the _regia_, and her husband the _rex_ made
known to the people the day on which the Nones would fall. Thus she is
brought into close relation with Janus, who also was worshipped on the
Kalends by the _rex sacrorum_, and it may be that in the oldest Roman
religion these two were more closely connected than Juno and Jupiter.
But in historical times she was associated with Jupiter in the great
temple on the Capitoline hill as Juno _Regina_, the queen of all Junones
or queen of heaven, as Jupiter there was _Optimus Maximus_ (see
JUPITER), and under the same title she was enticed from Veii after its
capture in 392 B.C., and settled in a temple on the Aventine. Thus
exalted above all other female deities, she was prepared for that
identification with Hera which was alluded to above. That she was in
some sense a deity of light seems certain; as Lucina, e.g., she
introduced new-born infants "in luminis oras."
See Roscher's article "Juno" in his Lexicon of Mythology, and his
earlier treatise on Juno and Hera; Wissowa, _Religion und Kultus der
Römer_, 113 foll.; also a fresh discussion by Walter Otto in
_Philologus_ for 1905 (p. 161 foll.). (W. W. F.*)
JUNOT, ANDOCHE, DUKE OF ABRABANTES (1771-1813), French general, was born
at Bussy-le-Grand (Côte d'Or), on the 23rd of October 1771. He went to
school at Chatillon, and was known among his comrades as a blustering
but lovable creature, with a pugnacious disposition. He was studying law
in Paris at the outbreak of the Revolution and joined a volunteer
battalion. He distinguished himself by his valour in the first year of
the Revolutionary wars, and came under the special notice of Napoleon
Bonaparte during the siege of Toulon, while serving as his secretary. It
is related that as he was taking down a despatch, a shell burst hard by
and covered the paper with sand, whereupon he exclaimed, "Bien! nous
n'avions pas de sable pour sécher l'encre! en voici!" He remained the
faithful companion of his chief during the latter's temporary disgrace,
and went with him to Italy as aide-de-camp. He distinguished himself so
much at the battle of Millesimo that he was selected to carry back the
captured colours to Paris; returning to Italy he went through the
campaign with honour, but was badly wounded in the head at Lonato. Many
rash incidents in his career may be traced to this wound, from which he
never completely recovered. During the expedition to Egypt he became a
general of brigade. His devotion to Bonaparte involved him in a duel
with General Lanusse, in which he was again wounded. He had to be left
in Egypt to recover, and in crossing to France was captured by English
cruisers. On his return to France he was made commandant of Paris, and
afterwards promoted general of division. It was at this time that he
married Laure Permon (see JUNOT, LAURE). He next served at Arras in
command of the grenadiers of the army destined for the invasion of
England, and made some alterations in the equipment of the troops which
received the praise of the emperor. It was, however, a bitter
mortification that he was not appointed a marshal of France when he
received the grand cross of the legion of honour. He was made
colonel-general of hussars instead and sent as ambassador to Lisbon, his
entry into which city resembled a royal progress. But he was so restless
and dissatisfied in the Portuguese capital that he set out, without
leave, for the army of Napoleon, with which he took part in the battle
of Austerlitz, behaving with his usual courage and zeal. But he soon
gave fresh offence. Although his early devotion was never forgotten by
the emperor, his uncertain temper and want of self-control made it
dangerous to employ him at court or headquarters, and he was sent to
Parma to put down an insurrection and to be out of the way. In 1806 he
was recalled and became governor of Paris. His extravagance and
prodigality shocked the government, and some rumours of an intrigue with
a lady of the imperial family--it is said Pauline Bonaparte--made it
desirable again to send him away. He was therefore appointed to lead an
invading force into Portugal. For the first time Junot had a great task
to perform, and only his own resources to fall back upon for its
achievement. Early in November 1807 he set out from Salamanca, crossed
the mountains of Beira, rallied his wearied forces at Abrantes, and,
with 1500 men, dashed upon Lisbon, in order, if possible, to seize the
Portuguese fleet, which had, however, just sailed away with the regent
and court to Brazil. The whole movement only took a month; it was
undoubtedly bold and well-conducted, and Junot was made duke of Abrantes
and invested with the governorship of Portugal. But administration was
his weak point. He was not a civil governor, but a _sabreur_, brave,
truculent, and also dissipated and rapacious, though in the last respect
he was far from being the worst offender amongst the French generals in
Spain. His hold on Portugal was never supported by a really adequate
force, and his own conduct, which resembled that of an eastern monarch,
did nothing to consolidate his conquest. After Wellesley encountered him
at Vimiera (see Peninsular War) he was obliged to conclude the so-called
convention of Cintra, and to withdraw from Portugal with all his forces.
Napoleon was furious, but, as he said, was spared the necessity of
sending his old friend before a court martial by the fact that the
English put their own generals on their trial. Junot was sent back to
Spain, where, in 1810-1811, acting under Masséna, he was once more
seriously wounded. His last campaign was made in Russia, and he received
more than a just share of discredit for it. Napoleon next appointed him
to govern Illyria. But Junot's mind had become deranged under the weight
of his misfortunes, and on the 29th of July 1813, at Montbard, he threw
himself from a window in a fit of insanity.
JUNOT, LAURE, DUCHESS OF ABRANTES (1783-1834), wife of the preceding,
was born at Montpellier. She was the daughter of Mme. Permon, to whom
during her widowhood the young Bonaparte made an offer of marriage--such
at least is the version presented by the daughter in her celebrated
_Memoirs_. The Permon family, after various vicissitudes, settled at
Paris, and Bonaparte certainly frequented their house a good deal after
the downfall of the Jacobin party in Thermidor 1794. Mlle. Permon was
married to Junot early in the consulate, and at once entered eagerly
into all the gaieties of Paris, and became noted for her beauty, her
caustic wit, and her extravagance. The first consul nicknamed her
_petite peste_, but treated her and Junot with the utmost generosity, a
fact which did not restrain her sarcasms and slanders in her portrayal
of him in her _Memoirs_. During Junot's diplomatic mission to Lisbon,
his wife displayed her prodigality so that on his return to Paris in
1806 he was burdened with debts, which his own intrigues did not lessen.
She joined him again at Lisbon after he had entered that city as
conqueror at the close of 1807; but even the presents and spoils won at
Lisbon did not satisfy her demands; she accompanied Junot through part
of the Peninsular War. On her return to France she displeased the
emperor by her vivacious remarks and by receiving guests whom he
disliked. The mental malady of Junot thereafter threatened her with
ruin; this perhaps explains why she took some part in the intrigues for
bringing back the Bourbons in 1814. She did not side with Napoleon
during the Hundred Days. After 1815 she spent most of her time at Rome
amidst artistic society, which she enlivened with her sprightly
converse. She also compiled her spirited but somewhat spiteful
_Memoirs_, which were published at Paris in 1831-1834 in 18 volumes.
Many editions have since appeared.
Of her other books the most noteworthy are _Histoires contemporaines_
(2 vols., 1835); _Scènes de la vie espagnole_ (2 vols., 1836);
_Histoire des salons de Paris_ (6 vols., 1837-1838); _Souvenirs d'une
ambassade et d'un séjour en Espagne et en Portugal, de 1808 à 1811_ (2
vols., 1837). (J. Hl. R.)
JUNTA (from _juntar_, to join), a Spanish word meaning (1) any meeting
for a common purpose; (2) a committee; (3) an administrative council or
board. The original meaning is now rather lost in the two derivative
significations. The Spaniards have even begun to make use of the
barbarism _métin_, corrupted from the English "meeting." The word
_junta_ has always been and still is used in the other senses. Some of
the boards by which the Spanish administration was conducted under the
Habsburg and the earlier Bourbon kings were styled _juntas_. The
superior governing body of the Inquisition was the _junta suprema_. The
provincial committees formed to organize resistance to Napoleon's
invasion in 1808 were so called, and so was the general committee chosen
from among them to represent the nation. In the War of Independence
(1808-1814), and in all subsequent civil wars or revolutionary
disturbances in Spain or Spanish America, the local executive bodies,
elected, or in some cases self-chosen, to appoint officers, raise money
and soldiers, look after the wounded, and discharge the functions of an
administration, have been known as juntas.
The form "Junto," a corruption due to other Spanish words ending in
-_o_, came into use in English in the 17th century, often in a
disparaging sense, of a party united for a political purpose, a faction
or cabal; it was particularly applied to the advisers of Charles I., to
the Rump under Cromwell, and to the leading members of the great Whig
houses who controlled the government in the reigns of William III. and
Anne.
JUPITER, the chief deity of the Roman state. The great and constantly
growing influence exerted from a very early period on Rome by the
superior civilization of Greece not only caused a modification of the
Roman god on the analogy of Zeus, the supreme deity of the Greeks, but
led the Latin writers to identify the one with the other, and to
attribute to Jupiter myths and family relations which were purely Greek
and never belonged to the real Roman religion. The Jupiter of actual
worship was a Roman god; the Jupiter of Latin literature was more than
half Greek. This identification was facilitated by the community of
character which really belonged to Jupiter and Zeus as the Roman and
Greek developments of a common original conception of the god of the
light and the heaven.
That this was the original idea of Jupiter, not only in Rome, but among
all Italian peoples, admits of no doubt. The earliest form of his name
was _Diovis pater_, or _Diespiter_, and his special priest was the
flamen dialis; all these words point to a root _div_, shining, and the
connexion with _dies_, day, is obvious (cf. JUNO). One of his most
ancient epithets is _Lucetius_, the light-bringer; and later literature
has preserved the same idea in such phrases as _sub Jove_, under the
open sky. All days of the full moon (_idus_) were sacred to him; all
emanations from the sky were due to him and in the oldest form of
religious thought were probably believed to be manifestations of the god
himself. As Jupiter _Elicius_ he was propitiated, with a peculiar
ritual, to send rain in time of drought; as Jupiter _Fulgur_ he had an
altar in the Campus Martius, and all places struck by lightning were
made his property and guarded from the profane by a circular wall. The
vintage, which needs especially the light and heat of the sun, was under
his particular care, and in the festivals connected with it (_Vinalia
urbana_) and _Meditrinalia_, he was the deity invoked, and his flamen
the priest employed. Throughout Italy we find him worshipped on the
summits of hills, where nothing intervened between earth and heaven, and
where all the phenomena of the sky could be conveniently observed. Thus
on the Alban hill south of Rome was an ancient seat of his worship as
Jupiter _Latiaris_, which was the centre of the league of thirty Latin
cities of which Rome was originally an ordinary member. At Rome itself
it is on the Capitoline hill that we find his oldest temple, described
by Livy (i. 10); here we have a tradition of his sacred tree, the oak,
common to the worship both of Zeus and Jupiter, and here too was kept
the _lapis silex_, perhaps a celt, believed to have been a thunderbolt,
which was used symbolically by the fetiales when officially declaring
war and making treaties on behalf of the Roman state. Hence the curious
form of oath, _Jovem lapident jurare_, used both in public and private
life at Rome.
In this oldest Jupiter of the Latins and Romans, the god of the light
and the heaven, and the god invoked in taking the most solemn oaths, we
may undoubtedly see not only the great protecting deity of the race, but
one, and perhaps the only one, whose worship embodies a distinct moral
conception. He is specially concerned with oaths, treaties and leagues,
and it was in the presence of his priest that the most ancient and
sacred form of marriage, _confarreatio_, took place. The lesser deities,
Dius Fidius and Fides, were probably originally identical with him, and
only gained a separate existence in course of time by a process familiar
to students of ancient religion. This connexion with the conscience,
with the sense of obligation and right dealing, was never quite lost
throughout Roman history. In Virgil's great poem, though Jupiter is in
many ways as much Greek as Roman, he is still the great protecting deity
who keeps the hero in the path of duty (_pietas_) towards gods, state
and family.
But this aspect of Jupiter gained a new force and meaning at the close
of the monarchy with the building of the famous temple on the Capitol,
of which the foundations are still to be seen. It was dedicated to
Jupiter _Optimus Maximus_, i.e. the best and greatest of all the
Jupiters, and with him were associated Juno and Minerva, in a fashion
which clearly indicates a Graeco-Etruscan origin; for the combination of
three deities in one temple was foreign to the ancient Roman religion,
while it is found both in Greece and Etruria. This temple was built on a
scale of magnificence quite unknown to primitive Rome, and was beyond
doubt the work of Etruscan architects employed, we may presume, by the
Tarquinii. Its three _cellae_ contained the statues of the three
deities, with Jupiter in the middle holding his thunderbolt.
Henceforward it was the centre of the religious life of the state, and
symbolized its unity and strength. Its dedication festival fell on the
13th of September, on which day the consuls originally succeeded to
office; accompanied by the senate and other magistrates and priests, and
in fulfilment of a vow made by their predecessors, they offered to the
great god a white heifer, his favourite sacrifice, and after rendering
thanks for the preservation of the state during the past year, made the
same vow as that by which they themselves had been bound. Then followed
the _epulum Jovis_ or feast of Jupiter, in which the three deities seem
to have been visibly present in the form of their statues, Jupiter
having a couch and each goddess a _sella_, and shared the meal with
senate and magistrates. In later times this day became the central point
of the great Roman games (_ludi Romani_), originally games vowed in
honour of the god if he brought a war to a successful issue. When a
victorious army returned home, it was to this temple that the triumphal
procession passed, and the triumph of which we hear so often in Roman
history may be taken as a religious ceremonial in honour of Jupiter. The
general was dressed and painted to resemble the statue of Jupiter
himself, and was drawn on a gilded chariot by four white horses through
the Porta Triumphalis to the Capitol, where he offered a solemn
sacrifice to the god, and laid on his knees the victor's laurels (see
TRIUMPH).
Throughout the period of the Republic the great god of the Capitol in
his temple looking down on the Forum continued to overshadow all other
worships as the one in which the whole state was concerned, in all its
length and breadth, rather than any one gens or family. Under Augustus
and the new monarchy it is sometimes said that the Capitoline worship
suffered to some extent an eclipse (J. B. Carter, _The Religion of
Numa_, p. 160 seq.); and it is true that as it was the policy of
Augustus to identify the state with the interests of his own family, he
did what was feasible to direct the attention of the people to the
worships in which he and his family were specially concerned; thus his
temple of Apollo on the Palatine, and that of Mars Ultor in the Forum
Augusti, took over a few of the prerogatives of the cult on the Capitol.
But Augustus was far too shrewd to attempt to oust Jupiter Optimus
Maximus from his paramount position; and he became the protecting deity
of the reigning emperor as representing the state, as he had been the
protecting deity of the free republic. His worship spread over the whole
empire; it is probable that every city had its temple to the three
deities of the Roman Capitol, and the fact that the Romans chose the
name of Jupiter in almost every case, by which to indicate the chief
deity of the subject peoples, proves that they continued to regard him,
so long as his worship existed at all, as the god whom they themselves
looked upon as greatest.
See ZEUS, ROMAN RELIGION. Excellent accounts of Jupiter may be found
in Roscher's _Mythological Lexicon_, and in Wissowa's _Religion und
Kultus der Römer_ (p. 100 seq.). (W. M. Ra.; W. W. F.*)
JUPITER, in astronomy, the largest planet of the solar system; his size
is so great that it exceeds the collective mass of all the others in the
proportion of 5 to 2. He travels in his orbit at a mean distance from
the sun exceeding that of the earth 5.2 times, or 483,000,000 miles. The
eccentricity of this orbit is considerable, amounting to 0.048, so that
his maximum and minimum distances are 504,000,000 and 462,000,000 miles
respectively. When in opposition and at his mean distance, he is
situated 390,000,000 miles from the earth. His orbit is inclined about
1° 18´ 40´´ to the ecliptic. His sidereal revolution is completed in
4332.585 days or 11 years 314.9 days, and his synodical period, or the
mean interval separating his returns to opposition, amounts to 398.87
days. His real polar and equatorial diameters measure 84,570 and 90,190
miles respectively, so that the mean is 87,380 miles. His apparent
diameter (equatorial) as seen from the earth varies from about 32´´,
when in conjunction with the sun, to 50´´ in opposition to that
luminary. The oblateness, or compression, of his globe amounts to about
1/16; his volume exceeds that of the earth 1390 times, while his mass is
about 300 times greater. These values are believed to be as accurate as
the best modern determinations allow, but there are some differences
amongst various observers and absolute exactness cannot be obtained.
The discovery of telescopic construction early in the 17th century and
the practical use of the telescope by Galileo and others greatly
enriched our knowledge of Jupiter and his system. Four of the satellites
were detected in 1610, but the dark bands or belts on the globe of the
planet do not appear to have been noticed until twenty years later.
Though Galileo first sighted the satellites and perseveringly studied
the Jovian orb, he failed to distinguish the belts, and we have to
conclude either that these features were unusually faint at the period
of his observations, or that his telescopes were insufficiently powerful
to render them visible. The belts were first recognized by Nicolas
Zucchi and Daniel Bartoli on the 17th of May 1630. They were seen also
by Francesco Fontana in the same and immediately succeeding years, and
by other observers of about the same period, including Zuppi, Giovanni
Battista Riccioli and Francesco Maria Grimaldi. Improvements in
telescopes were quickly introduced, and between 1655 and 1666 C.
Huygens, R. Hooke and J. D. Cassini made more effective observations.
Hooke discovered a large dark spot in the planet's southern hemisphere
on the 19th of May 1664, and from this object Cassini determined the
rotation period, in 1665 and later years, as 9 hours 56 minutes.
The belts, spots and irregular markings on Jupiter have now been
assiduously studied during nearly three centuries. These markings are
extremely variable in their tones, tints and relative velocities, and
there is little reason to doubt that they are atmospheric formations
floating above the surface of the planet in a series of different
currents. Certain of the markings appear to be fairly durable, though
their rates of motion exhibit considerable anomalies and prove that they
must be quite detached from the actual sphere of Jupiter. At various
times determinations of the rotation period were made as follows:--
_Date._ _Observer._ _Period._ _Place of Spot._
1672 J. D. Cassini 9 h. 55 m. 50 s. Lat. 16° S.
1692 " 9 h. 50 m. Equator.
1708 J. P. Maraldi 9 h. 55 m. 48 s. S. tropical zone
1773 J. Sylvabelle 9 h. 56 m. " "
1788 J. H. Schröter 9 h. 55 m. 33.6 s. Lat. 12° N.
1788 " 9 h. 55 m. 17.6 s. Lat. 20° S.
1835 J. H. Mädler 9 h. 55 m. 26.5 s. Lat. 5° N.
1835 G. B. Airy 9 h. 55 m. 21.3 s. N. tropical zone.
A great number of Jovian features have been traced in more recent years
and their rotation periods ascertained. According to the researches of
Stanley Williams the rates of motion for different latitudes of the
planet are approximately as under:--
_Latitude._ _Rotation Period._
+85° to +28° 9 h. 55 m. 37.5 s.
+28° to +24° 9 h. 54½ m. to 9 h. 56½ m.
+24° to +20° 9 h. 48 m. to 9 h. 49½ m.
+20° to +10° 9 h. 55 m. 33.9 s.
+10° to -12° 9 h. 50 m. 20 s.
-12° to -18° 9 h. 55 m. 40 s.
-18° to -37° 9 h. 55 m. 18.1 s.
-37° to -55° 9 h. 55 m. 5 s.
W. F. Denning gives the following relative periods for the years 1898 to
1905:--
_Latitude._ _Rotation Period._
N.N. temperate 9 h. 55 m. 41.5 s.
N. temperate 9 h. 55 m. 53.8 s.
N. tropical 9 h. 55 m. 30 s.
Equatorial 9 h. 50 m. 27 s.
S. temperate 9 h. 55 m. 19.5 s.
S.S. temperate 9 h. 55 m. 7 s.
[Illustration: FIG. 1.--Inverted disk of Jupiter, showing the different
currents and their rates of rotation.]
The above are the mean periods derived from a large number of markings.
The bay or hollow in the great southern equatorial belt north of the red
spot has perhaps been observed for a longer period than any other
feature on Jupiter except the red spot itself. H. Schwabe saw the hollow
in the belt on the 5th of September 1831 and on many subsequent dates.
The rotation period of this object during the seventy years to the 5th
of September 1901 was 9 h. 55 m. 36 s. from 61,813 rotations. Since 1901
the mean period has been 9 h. 55 m. 40 s., but it has fluctuated between
9 h. 55 m. 38 s. and 9 h. 55 m. 42 s. The motion of the various features
is not therefore dependent upon their latitude, though at the equator
the rate seems swifter as a rule than in other zones. But exceptions
occur, for in 1880 some spots appeared in about 23° N. which rotated in
9 h. 48 m. though in the region immediately N. of this the spot motion
is ordinarily the slowest of all and averages 9 h. 55 m. 53.8 s. (from
twenty determinations). These differences of speed remind us of the
sun-spots and their proper motions. The solar envelope, however, appears
to show a pretty regular retardation towards the poles, for according to
Gustav Spörer's formula, while the equatorial period is 25 d. 2 h. 15 m.
the latitudes 46° N. and S. give a period of 28 d. 15 h. 0 m.
The Jovian currents flow in a due east and west direction as though
mainly influenced by the swift rotatory movement of the globe, and
exhibit little sign of deviation either to N. or S. These currents do
not blend and pass gradually into each other, but seem to be definitely
bounded and controlled by separate, phenomena well capable of preserving
their individuality. Occasionally, it is true, there have been slanting
belts on Jupiter (a prominent example occurred in the spring of 1861),
as though the materials were evolved with some force in a polar
direction, but these oblique formations have usually spread out in
longitude and ultimately formed bands parallel with the equator. The
longitudinal currents do not individually present us with an equable
rate of motion. In fact they display some curious irregularities, the
spots carried along in them apparently oscillating to and fro without
any reference to fixed periods or cyclical variations. Thus the
equatorial current in 1880 moved at the rate of 9 h. 50 m. 6 s. whereas
in 1905 it was 9 h. 50 m. 33 s. The red spot in the S. tropical zone
gave 9 h. 55 m. 34 s. in 1879-1880, whereas during 1900-1908 it has
varied a little on either side of 9 h. 55 m. 40.6 s. Clearly therefore
no fixed period of rotation can be applied for any spot since it is
subject to drifts E. or W. and these drifts sometimes come into
operation suddenly, and may be either temporary or durable. Between 1878
and 1900 the red spot in the planet's S. hemisphere showed a continuous
retardation of speed.
It must be remembered that in speaking of the rotation of these
markings, we are simply alluding to the irregularities in the vaporous
envelope of Jupiter. The rotation of the planet itself is another matter
and its value is not yet exactly known, though it is probably little
different from that of the markings, and especially from those of the
most durable character, which indicate a period of about 9 h. 56 m. We
never discern the actual landscape of Jupiter or any of the individual
forms really diversifying it.
Possibly the red spot which became so striking an object in 1878, and
which still remains faintly visible on the planet, is the same feature
as that discovered by R. Hooke in 1664 and watched by Cassini in
following years. It was situated in approximately the same latitude of
the planet and appears to have been hidden temporarily during several
periods up to 1713. But the lack of fairly continuous observations of
this particular marking makes its identity with the present spot
extremely doubtful. The latter was seen by W. R. Dawes in 1857, by Sir
W. Huggins in 1858, by J. Baxendell in 1859, by Lord Rosse and R.
Copeland in 1873, by H. C. Russell in 1876-1877, and in later years it
has formed an object of general observation. In fact it may safely be
said that no planetary marking has ever aroused such widespread interest
and attracted such frequent observation as the great red spot on
Jupiter.
The slight inclination of the equator of this planet to the plane of his
orbit suggests that he experiences few seasonal changes. From the
conditions we are, in fact, led to expect a prevailing calm in his
atmosphere, the more so from the circumstance that the amount of the
sun's heat poured upon each square mile of it is (on the average) less
than the 27th part of that received by each square mile of the earth's
surface. Moreover, the seasons of Jupiter have nearly twelve times the
duration of ours, so that it would be naturally expected that changes in
his atmosphere produced by solar action take place with extreme
slowness. But this is very far from being the case. Telescopes reveal
the indications of rapid changes and extensive disturbances in the
aspect and material forming the belts. New spots covering large areas
frequently appear and as frequently decay and vanish, implying an
agitated condition of the Jovian atmosphere, and leading us to admit the
operation of causes much more active than the heating influence of the
sun.
[Illustration: FIG. 2.--Jupiter, 1903, July 10, 2.50 a.m.]
[Illustration: FIG. 3.--Jupiter, 1906, April 15, 5.50 p.m.]
When we institute a comparison between Jupiter and the earth on the
basis that the atmosphere of the former planet bears the same relation
to his mass as the atmosphere of the earth bears to her mass, we find
that a state of things must prevail on Jupiter very dissimilar to that
affecting our own globe. The density of the Jovian atmosphere we should
expect to be fully six times as great as the density of our air at
sea-level, while it would be comparatively shallow. But the telescopic
aspect of Jupiter apparently negatives the latter supposition. The belts
and spots grow faint as they approach the limb, and disappear as they
near the edge of the disk, thus indicating a dense and deep atmosphere.
R. A. Proctor considered that the observed features suggested inherent
heat, and adopted this conclusion as best explaining the surface
phenomena of the planet. He regarded Jupiter as belonging, on account of
his immense size, to a different class of bodies from the earth, and was
led to believe that there existed greater analogy between Jupiter and
the sun than between Jupiter and the earth. Thus the density of the sun,
like that of Jupiter, is small compared with the earth's; in fact, the
mean density of the sun is almost identical with that of Jupiter, and
the belts of the latter planet may be much more aptly compared with the
spot zones of the sun than with the trade zones of the earth.
In support of the theory of inherent heat on Jupiter it has been said
that his albedo (or light reflected from his surface) is much greater
than the amount would be were his surface similar to that of the moon,
Mercury or Mars, and the reasoning has been applied to the large outer
planets, Saturn, Uranus and Neptune, as well as to Jupiter. The average
reflecting capacity of the moon and five outer planets would seem to be
(on the assumption that they possess no inherent light) as follows:--
Moon 0.1736 Jupiter 0.6238 Uranus 0.6400
Mars 0.2672 Saturn 0.4981 Neptune 0.4848
These values were considered to support the view that the four larger
and more distant orbs shine partly by inherent lustre, and the more so
as spectroscopic analysis indicates that they are each involved in a
deep vapour-laden atmosphere. But certain observations furnish a
contradiction to Proctor's views. The absolute extinction of the
satellites, even in the most powerful telescopes, while in the shadow of
Jupiter, shows that they cannot receive sufficient light from their
primary to render them visible, and the darkness of the shadows of the
satellites when projected on the planet's disk proves that the latter
cannot be self-luminous except in an insensible degree. It is also to be
remarked that, were it only moderately self-luminous, the colour of the
light which it sends to us would be red, such light being at first
emitted from a heated body when its temperature is raised. Possibly,
however, the great red spot, when the colouring was intense in 1878 and
several following years, may have represented an opening in the Jovian
atmosphere, and the ruddy belts may be extensive rifts in the same
envelope. If Jupiter's actual globe emitted a good deal of heat and
light we should probably distinguish little of it, owing to the
obscuring vapours floating above the surface. Venus reflects relatively
more light than Jupiter, and there is little doubt that the albedo of a
planet is dependent upon atmospheric characteristics, and is in no case
a direct indication of inherent light and heat.
The colouring of the belts appears to be due to seasonal variations, for
Stanley Williams has shown that their changes have a cycle of twelve
years, and correspond as nearly as possible with a sidereal revolution
of Jupiter. The variations are of such character that the two great
equatorial belts are alternately affected; when the S. equatorial belt
displays maximum redness the N. equatorial is at a minimum and vice
versa.
The most plausible hypothesis with regard to the red spot is that it is
of the nature of an island floating upon a liquid surface, though its
great duration does not favour this idea. But it is an open question
whether the belts of Jupiter indicate a liquid or gaseous condition of
the visible surface. The difficulty in the way of the liquid hypothesis
is the great difference in the times of rotation between the equatorial
portions of the planet and the spots in temperate latitudes. The latter
usually rotate in periods between 9 h. 55 m. and 9 h. 56 m., while the
equatorial markings make a revolution in about five minutes less, 9 h.
50 m. to 9 h. 51 m. The difference amounts to 7.5° in a terrestrial day
and proves that an equatorial spot will circulate right round the
enormous sphere of Jupiter (circumference 283,000 m.) in 48 days. The
motion is equivalent to about 6000 m. per day and 250 m. per hour.
(W. F. D.)
_Satellites of Jupiter._
Jupiter is attended by eight known satellites, resolvable as regards
their visibility into two widely different classes. Four satellites were
discovered by Galileo and were the only ones known until 1892. In
September of that year E. E. Barnard, at the Lick Observatory,
discovered a fifth extremely faint satellite, performing a revolution in
somewhat less than twelve hours. In 1904 two yet fainter satellites, far
outside the other five, were photographically discovered by C. D.
Perrine at the Lick Observatory. The eighth satellite was discovered by
P. J. Melotte of Greenwich on the 28th of February 1908. It is of the
17th magnitude and appears to be very distant from Jupiter; a
re-observation on the 16th of January 1909 proved it to be retrograde,
and to have a very eccentric orbit. These bodies are usually numbered in
the order of their discovery, the nearest to the sun being V. In
apparent brightness each of the four Galilean satellites may be roughly
classed as of the sixth magnitude; they would therefore be visible to a
keen eye if the brilliancy of the planet did not obscure them. Some
observers profess to have seen one or more of these bodies with the
naked eye notwithstanding this drawback, but the evidence can scarcely
be regarded as conclusive. It does not however seem unlikely that the
third, which is the brightest, might be visible when in conjunction with
one of the others.
Under good conditions and sufficient telescopic power the satellites are
visible as disks, and not mere points of light. Measures of the apparent
diameter of objects so faint are, however, difficult and uncertain. The
results for the Galilean satellites range between 0´´.9 and 1´´.5,
corresponding to diameters of between 3000 and 5000 kilometres. The
smallest is therefore about the size of our moon. Satellite I. has been
found to exhibit marked variations in its brightness and aspect, but the
law governing them has not been satisfactorily worked out. It seems
probable that one hemisphere of this satellite is brighter than the
other, or that there is a large dark region upon it. A revolution on its
axis corresponding with that of the orbital revolution around the planet
has also been suspected, but is not yet established. Variations of light
somewhat similar, but less in amount, have been noticed in the second
and third satellites.
The most interesting and easily observed phenomena of these bodies are
their eclipses and their transits across the disk of Jupiter. The four
inner satellites pass through the shadow of Jupiter at every superior
conjunction, and across his disk at every inferior conjunction. The
outer Galilean satellite does the same when the conjunctions are not too
near the line of nodes of the satellites' orbit. When most distant from
the nodes, the satellites pass above or below the shadow and below or
above the disk. These phenomena for the four Galilean satellites are
predicted in the nautical almanacs.
When one of the four Galilean satellites is in transit across the disk
of Jupiter it can generally be seen projected on the face of the planet.
It is commonly brighter than Jupiter when it first enters upon the limb
but sometimes darker near the centre of the disk. This is owing to the
fact that the planet is much darker at the limb. During these transits
the shadow of the satellites can also be seen projected on the planet as
a dark point.
The theories of the motion of these bodies form one of the more
interesting problems of celestial mechanics. Owing to the great
ellipticity of Jupiter, growing out of his rapid rotation, the
influence of this ellipticity upon the motions of the five inner
satellites is much greater than that of the sun, or of the satellites
on each other. The inclination of the orbits to the equator of Jupiter
is quite small and almost constant, and the motion of each node is
nearly uniform around the plane of the planet's equator.
The most marked feature of these bodies is a relation between the mean
longitudes of Satellites I., II. and III. The mean longitude of I.
plus twice that of III. minus three times that of II. is constantly
near to 180°. It follows that the same relations subsist among the
mean motions. The cause of this was pointed out by Laplace. If we put
L1 L2 and L3 for the mean longitudes, and define an angle U as
follows:--