FOOTNOTE:

[1] One branch of the Blackwood family emigrated to France; the head

of this line being Adam Blackwood (d. 1613), jurist, poet and divine,

and senator of the presidial court of Poitiers.

DUFF-GORDON, LUCIE (1821-1869), English woman of letters, daughter of

John and Sarah Austin (q.v.), was born on the 24th of June 1821. Her

chief playfellows as a child were her cousin, Henry Reeve, and John

Stuart Mill, who lived next door in Queen Square, London. In 1834 the

Austins went to Boulogne, and at table d'hote Lucie found herself next

to Heinrich Heine. The poet and the little girl became fast friends, and

years afterwards she contributed to Lord Houghton's _Monographs Personal

and Social_ a touching account of a renewal of their friendship when

Heine lay dying in Paris. Her parents went to Malta in 1836, and Lucie

Austin was left in England at school, but her unconventional education

made the restrictions of a girls' school exceedingly irksome. She showed

her independence of character by joining the English Church, though this

step was certain to cause pain to her parents, who were Unitarians, and

to many of her friends. She married in 1840 Sir Alexander Duff-Gordon

(1811-1872). With her mother's beauty she had inherited her social

gifts, and she gathered round her a brilliant circle of friends. George

Meredith has analysed and described her extraordinary success as a

hostess, and the process by which she reduced too ardent admirers to

"happy crust-munching devotees." "In England, in her day," he says,

"while health was with her, there was one house where men and women

conversed. When that house perforce was closed, a light had gone out in

our country." After her father's death, she fell into weak health and

was obliged to seek sunnier climes. She went in 1860 to the Cape of Good

Hope, and later to Egypt, where she died on the 14th of July 1869. She

had translated among other works _Ancient Grecian Mythology_ (1839) from

the German of Niebuhr; _Mary Schweidler_; _The Amber Witch_ (1844) from

the German of Wilhelm Meinhold; and _Stella and Vanessa_ (1850) from the

French of A.F.L. de Wailly. Her _Letters from the Cape_ (1862-1863)

appeared in 1865; and in 1865 her _Letters from Egypt_, edited by her

mother, attracted much attention. _Last Letters from Egypt_ (1875)

contained a memoir by her daughter, Mrs Janet Ross. Lady Duff-Gordon won

the hearts of her Arab dependents and neighbours. She doctored their

sick, taught their children, and sympathized with their sorrows.

The _Letters front Egypt_ were not originally published in a complete

form. A fuller edition than had before been possible, with an

introduction by George Meredith, was edited in 1902 by Mrs Janet Ross.

See also Mrs Ross's _Three Generations of Englishwomen_ (1886).

DUFFTOWN, a municipal and police burgh of Banffshire, Scotland, on the

Fiddich, 64 m. W.N.W. of Aberdeen by the Great North of Scotland

railway. Pop. (1901) 1823. It dates from 1817 and bears the name of its

founder, James Duff, 4th earl of Fife. Although planned in the shape of

a cross, with a square and tower in the middle, the arms of the cross

are not straight, the constructor holding the ingenious opinion that, in

order to prevent little towns from being taken in at a glance, their

streets should be crooked. The leading industries are lime-works and

distilleries, the water being specially fitted for the making of whisky.

The town has considerable repute as a health resort, owing partly to its

elevation (737 ft.) and partly to the natural charms of the district.

The parish of Mortlach, in which Dufftown is situated, is rich in

archaeological and historical associations. What is called the Stone of

Mortlach is traditionally believed to have been erected to commemorate

the success of Malcolm II. over the Danes in 1010. The three large

stones known as "The King's Grave," a hill-fort, and cairns are of

interest to the antiquary. The old church of Mortlach, though restored

and almost renewed, still contains some lancet windows and a

round-headed doorway, besides monuments dating from 1417. A portion of

old Balvenie Castle, a ruin, is considered to be of Pictish origin, but

most of it is in the Scots Baronial. It has associations with Alexander

Stewart, earl of Buchan and lord of Badenoch (1343-1405), son of Robert

II., whose ruffianly conduct in Elginshire earned him the designation of

the Wolf of Badenoch, the Comyns, the Douglases (to whom it gave the

title of baron in the 15th century), the Stuarts and the Duffs. The new

castle, an uninteresting building, was erected in 1724 by the earl of

Fife, and though untenanted is maintained in repair. Two miles to the

S.E. of Dufftown is the ruined castle of Auchindown, finely situated on

a limestone crag, 200 ft. high, of which three sides are washed by the

Fiddich and the fourth was protected by a moat. It dates from the 11th

century, and once belonged to the Ogilvies, from whom it passed in 1535

to the Gordons. The Gothic hall with rows of fluted pillars is in fair

preservation. Ben Rinnes (2755 ft.) and several other hills of lesser

altitude all lie within a few miles of Dufftown. About 4 m. to the N.W.

is Craigellachie--Gaelic for "the rock of alarm"--(pop. 454), on the

confines of Elginshire. It is situated on the Spey amidst scenery of

surpassing loveliness. The slogan of the Grants is "Stand fast

Craigellachie!" The place has become an important junction of the Great

North of Scotland railway system.

DUFFY, SIR CHARLES GAVAN (1816-1903), Irish and colonial politician, was

born in Monaghan, Ireland, on the 12th of April 1816. At an early age he

became connected with the press, and was one of the founders (1842) of

the _Nation_, a Dublin weekly which was remarkable for its talent, for

its seditious tendencies, and for the fire and spirit of its political

poetry. In 1844 Duffy was included in the same indictment with

O'Connell, and shared his conviction in Dublin and his acquittal by the

House of Lords upon a point of law. His ideas, nevertheless, were too

revolutionary for O'Connell; a schism took place in 1846, and Duffy

united himself to the "Young Ireland" party. He was tried for

treason-felony in 1848, but the jury were unable to agree. Duffy

continued to agitate in the press and in parliament, to which he was

elected in 1852, but his failure to bring about an alliance between

Catholics and Protestants upon the land question determined him in 1856

to emigrate to Victoria. There he became in 1857 minister of public

works, and after an active political career, in the course of which he

was prime minister from 1871 to 1873, when he was knighted, he was

elected speaker of the House of Assembly in 1877, being made K.C.M.G. in

the same year. In 1880 he resigned and returned to Europe, residing

mostly in the south of France. He published _The Ballad Poetry of

Ireland_ (1845), several works on Irish history, _Conversations with

Carlyle_ (1892), _Memoirs_ (1898), &c. In 1891 he became first president

of the Irish Literary Society. He was married three times, his third

wife dying in 1889. He died on the 9th of February 1903.

DUFOUR, WILHELM HEINRICH [GUILLAUME HENRI] (1787-1875), Swiss general,

was born at Constance of Genevese parents temporarily in exile, on the

15th of September 1787. In 1807 he went to the Ecole Polytechnique at

Paris, Switzerland being then under French rule, taking the 140th place

only in his entrance examination. By two years' close study he so

greatly improved his position that he was ranked fifth in the exit

examination. Immediately on leaving the school he received a commission

in the engineers, and was sent to serve in Corfu, which was blockaded by

the English. During the Hundred Days he attained the rank of captain,

and was employed in raising fortifications at Grenoble. After the peace

that followed Waterloo he resumed his status as a Swiss citizen, and

devoted himself to the military service of his native land. From 1819 to

1830 he was chief instructor in the military school of Thun, which had

been founded mainly through his instrumentality. Among other

distinguished foreign pupils he instructed Louis Napoleon, afterwards

emperor of the French. In 1827 he was raised to the rank of colonel, and

commanded the Federal army in a series of field manoeuvres. In 1831 he

became chief of the staff, and soon afterwards he was appointed

quartermaster-general. Two years later the diet commissioned him to

superintend the execution of a complete trigonometrical survey of

Switzerland. He had already made a cadastral survey of the canton of

Geneva, and published a map of the canton on the scale of 1/25000. The

larger work occupied thirty-two years, and was accomplished with

complete success. The map in 25 sheets on the scale of 1/100000 was

published at intervals between 1842 and 1865, and is an admirable

specimen of cartography. In recognition of the ability with which Dufour

had carried out his task, the Federal Council in 1868 ordered the

highest peak of Monte Rosa to be named Dufour Spitze. In 1847 Dufour was

made general of the Federal Army, which was employed in reducing the

revolted Catholic cantons. The quickness and thoroughness with which he

performed the painful task, and the wise moderation with which he

treated his vanquished fellow-countrymen, were acknowledged by a gift of

60,000 francs from the diet and various honours from different cities

and cantons of the confederation. In politics he belonged to the

moderate conservative party, and he consequently lost a good deal of his

popularity in 1848. In 1864 he presided over the international

conference which framed the Geneva Convention as to the treatment of the

wounded in time of war, &c. He died on the 14th of July 1875. His _De la

fortification permanente_ (1850) is an important and original

contribution to the science of fortification, and he was also the author

of a _Memoire sur l'artillerie des anciens et sur celle du moyen age_

(1840), _Manuel de tactique pour les officiers de toutes armes_ (1842),

and various other works in military science. His memoir, _La Campagne du

Sonderbund_ (Paris, 1876), is prefaced by a biographical notice. An

equestrian statue of General Dufour was erected after his death at

Geneva by national subscription.

DUFRENOY, OURS PIERRE ARMAND PETIT (1792-1857), French geologist and

mineralogist, was born at Sevran, in the department of Seine-et-Oise, in

France, on the 5th of September 1792. After leaving the Imperial Lyceum,

in 1811, he studied till 1813 at the Ecole Polytechnique, and then

entered the Corps des Mines. He subsequently assisted in the management

of the Ecole des Mines, of which he was professor of mineralogy and

afterwards director. He was also professor of geology at the Ecole des

Ponts et Chausses. In conjunction with Elie de Beaumont he in 1841

published a great geological map of France, the result of investigations

carried on during thirteen years (1823-1836). Five years (1836-1841)

were spent in writing the text to accompany the map, the publication of

the work with two quarto vols. of text extending from 1841-1848; a third

volume was issued in 1873. The two authors had already together

published _Voyage metallurgique en Angleterre_ (1827, 2nd ed.

1837-1839), _Memoires pour servir a une description geologique de la

France_, in four vols. (1830-1838), and a _Memoire_ on Cantal and

Mont-Dore (1833). Other literary productions of Dufrenoy are an account

of the iron mines of the eastern Pyrenees (1834), and a treatise on

mineralogy (3 vols. and atlas, 1844-1845; 2nd ed., 4 vols. and atlas,

1856-1859), in which the geological relations as well as the physical

and chemical properties of minerals were dealt with; he likewise

contributed numerous papers to the Annales des mines and other

scientific publications, one of the most interesting of which is

entitled _Des terrains volcaniques des environs de Naples_. Dufrenoy was

a member of the Academy of Sciences, a commander of the Legion of

Honour, and an inspector-general of mines. He died in Paris on the 20th

of March 1857.

DUFRESNY, CHARLES, SIEUR DE LA RIVIERE (1648-1724), French dramatist,

was born in Paris in 1648. The allegation that his grandfather was an

illegitimate son of Henry IV. procured him the liberal patronage of

Louis XIV., who gave him the post of _valet de chambre_, and affixed his

name to many lucrative privileges. Dufresny's expensive habits

neutralized all efforts to enrich him, and as if to furnish a piquant

commentary on the proverb that poverty makes us acquainted with strange

bedfellows, he married, as his second wife, a washerwoman, in discharge

of her bill--a whimsicality which supplied Le Sage with an episode in

the _Diable boiteux_, and was made the subject of a comedy by J.M.

Deschamps (_Charles Riviere Dufresny, ou le mariage impromptu_). He died

in Paris on the 6th of October 1724. His plays, destitute for the most

part of all higher qualities, abound in sprightly wit and pithy sayings.

In the six volumes of his _Theatre_ (Paris, 1731), some of the best are

_L'Esprit de contradiction_ (1700), _Le Double Veuvage_ (1701), _La

Joueuse_ (1709), _La Coquette de village_ (1715), _La Reconciliation

normande_ (1719) and _Le Mariage fait et rompu_ (1721). A volume of

_Poesies diverses_, two volumes of _Nouvelles historiques_ (1692), and

_Les Amusements serieux et comiques d'un Siamois_ (1705), a work to

which Montesquieu was indebted for the idea of his _Lettres persanes_,

complete the list of Dufresny's writings. The best edition of his works

is that of 1747 (4 vols.). His _Theatre_ was edited (1882) by Georges

d'Heylli.

DUGAZON [JEAN HENRI GOURGAUD] (1746-1809), French actor, was born in

Marseilles on the 15th of November 1746, the son of the director of

military hospitals there. He began his career in the provinces, making

his debut in 1770 at the Comedie Francaise, where he aspired to leading

comedy roles. He pleased the public at once and was made _societaire_ in

1772. Dugazon was an ardent revolutionist, helped the schism which

divided the company, and went with Talma and the others to what became

the Theatre de la Republique. After the closing of this theatre, and the

dissolution of the Comedie Francaise, he took refuge at the Theatre

Feydeau until (1799) he returned to the restored Comedie. He retired in

1807, and died insane at Sandillon in 1809. Dugazon wrote three mediocre

comedies of a political character, performed at the Theatre de la

Republique. He married, in 1776, Louis Rose Lefevre, but was soon

divorced and then married again. The first Madame Dugazon (1755-1821),

the daughter of a Berlin dancing master, was a charming actress. Her

first appearance on the stage was made at the age of twelve as a dancer.

It was as an actress "with songs" that she made her debut at the Comedie

Italienne in 1774 in Gretry's _Sylvain_. She was at once admitted

_pensionnaire_ and in 1776 _societaire_. Madame Dugazon delighted all

Paris, and nightly crowded the Comedie Italienne for more than twenty

years. The two kinds of parts with which she was especially

identified--young mothers and women past their first youth--are still

called "_dugazons_" and "_meres dugazons_." Examples of the first are

Jenny in _La Dame blanche_ and Berthe de Simiane in _Les Mousquetaires

de la reine_; of the second, Marguerite in _Le Pre aux clercs_ and the

queen in _La Part du diable_.

Dugazon's sister, MARIE ROSE GOURGAUD (1743-1804), was an actress who

first played at Stuttgart, where she married Angelo, brother of Gaetano

Vestris, the dancer. Under the protection of the dukes of Choiseul and

Duras, she was commanded to make her debut at the Comedie Francaise in

1768, where she created important parts in a number of tragedies.

DUGDALE, SIR WILLIAM (1605-1686), English antiquary, was born at

Shustoke, near Coleshill, in Warwickshire, on the 12th of September

1605, the son of a country gentleman of an old Lancashire stock; he was

educated at Coventry. To please his father, who was old and infirm, he

married at seventeen. He lived with his wife's family until his father's

death in 1624, when he went to live at Fillongley, near Shustoke, an

estate formerly purchased for him by his father. In 1625 he purchased

the manor of Blythe, Shustoke, and removed thither in 1626. He had early

shown an inclination for antiquarian studies, and in 1635, meeting Sir

Symon Archer (1581-1662), himself a learned antiquary, who was then

employed in collecting materials for a history of Warwickshire, he

accompanied him to London. There he made the acquaintance of Sir

Christopher (afterwards Lord) Hatton, comptroller of the household, and

Thomas, earl of Arundel, then earl marshal of England. In 1638 Dugdale

was created a pursuivant of arms extraordinary by the name of Blanch

Lyon, and in 1639 rouge croix pursuivant in ordinary. He now had a

lodging in the Heralds' Office, and spent much of his time in London

examining the records in the Tower and the Cottonian and other

collections of MSS. In 1641 Sir Christopher Hatton, foreseeing the war

and dreading the ruin and spoliation of the Church, commissioned him to

make exact drafts of all the monuments in Westminster Abbey and the

principal churches in England, including Peterborough, Ely, Norwich,

Lincoln. Newark, Beverley, Southwell, Kingston-upon-Hull, York, Selby,

Chester, Lichfield, Tamworth and Warwick. In June 1642 he was summoned

to attend the king at York. When war broke out Charles deputed him to

summon to surrender the castles of Banbury and Warwick, and other

strongholds which were being rapidly filled with ammunition and rebels.

He went with Charles to Oxford, remaining there till its surrender in

1646. He witnessed the battle of Edgehill, where he made afterwards an

exact survey of the field, noting how the armies were drawn up, and

where and in what direction the various movements took place, and

marking the graves of the slain. In November 1642 he was admitted M.A.

of the university, and in 1644 the king created him Chester herald.

During his leisure at Oxford he collected material at the Bodleian and

college libraries for his books. In 1646 Dugdale returned to London and

compounded for his estates, which had been sequestrated, by a payment of

L168. After a visit to France in 1648 he continued his antiquarian

researches in London, collaborating with Richard Dodsworth in his

_Monasticon Anglicanum_, which was published successively in single

volumes in 1655, 1664 and 1673. At the Restoration he obtained the

office of Norroy king-at-arms, and in 1677 was created garter principal

king-at-arms, and was knighted. He died "in his chair" at Blythe Hall on

the 10th of February 1686.

Dugdale's most important works are _Antiquities of Warwickshire_

(1656); _Monasticon Anglicanum_ (1655-1673); _History of St Paul's

Cathedral_ (1658); and _Baronage of England_ (1675-1676). His _Life_,

written by himself up to 1678, with his diary and correspondence, and

an index to his manuscript collections, was edited by William Hamper,

and published in 1827.

DUGONG, one of the two existing generic representatives of the Sirenia,

or herbivorous aquatic mammals. Dugongs are distinguished from their

cousins the manatis by the presence in the upper jaw of the male of a

pair of large tusks, which in the female are arrested in their growth,

and remain concealed. There are never more than five molar teeth on each

side of either jaw, or twenty in all, and these are flat on the grinding

surface. The flippers are unprovided with nails, and the tail is broad,

and differs from that of the manati in being crescent-shaped instead of

rounded. The bones are hard and firm, and take a polish equal to that of

ivory. Dugongs frequent the shallow waters of the tropical seas,

extending from the east coast of Africa north of the mouth of the

Zambezi, along the shores of the Indian, Malayan and Australian seas,

where they may be seen basking on the surface of the water, or browsing

on submarine pastures of seaweed, for which the thick obtuse lips and

truncated snout pre-eminently fit them. They are gregarious, feeding in

large numbers in localities where they are not often disturbed. The

female produces a single young one at a birth, and is remarkable for the

great affection it shows for its offspring, so that when the young

dugong is caught there is no difficulty in capturing the mother. Three

species--the Indian dugong (_Halicore dugong_), the Red Sea dugong (_H.

tabernaculi_) and the Australian dugong (_H. australis_)--are commonly

recognized. The first is abundant along the shores of the Indian Ocean,

and is captured in large numbers by the Malays, who esteem its flesh a

great delicacy; the lean portions, especially of young specimens, are

regarded by Europeans as excellent eating. It is generally taken by

spearing, the main object of the hunter being to raise the tail out of

the water, when the animal becomes perfectly powerless. It seldom

attains a length of more than 8 or 10 ft. The Australian dugong is a

larger species, attaining sometimes a length of 15 ft.; it occurs along

the Australian coast from Moreton Bay to Cape York, and is highly valued

by the natives, who hunt it with spears, and gorge themselves with its

flesh, when they are fortunate enough to secure a carcase. Of late years

the oil obtained from the blubber of this species has been largely used

in Australia as a substitute for cod-liver oil. It does not contain

iodine, but is said to possess all the therapeutic qualities of

cod-liver oil without its nauseous taste. A full-grown dugong yields

from 10 to 12 gallons of oil, and this forms in cold weather a thick

mass, and requires to be melted before a fire previous to being used.

The flesh of the Australian dugong is easy of digestion, the muscular

fibre when fresh resembling beef, and when salted having the flavour of

bacon. In the earliest Australian dugong-fishery natives were employed

to harpoon these animals, which soon, however, became too wary to allow

themselves to be approached near enough for this purpose, and the

harpoon was abandoned for the net. The latter is spread at night, and in

its meshes dugongs are caught in considerable numbers. (R. L.*)

[Illustration: The Dugong.]

DUGUAY-TROUIN, RENE (1673-1736), French sea captain, belonged to a

well-known family of merchants and sea captains of St Malo. He was born

at St Malo on the 10th of June 1673. He was originally intended for the

church, and studied with that view at Rennes and Caen; but on the

breaking out of the war with England and Holland in 1689 he went to sea

in a privateer owned by his family. During the first three months his

courage was tried by a violent tempest, an imminent shipwreck, the

boarding of an English ship, and the threatened destruction of his own

vessel by fire. The following year, as a volunteer in a vessel of 28

guns, he was present in a bloody combat with an English fleet of five

merchant vessels. The courage he then showed was so remarkable that in

1691, at the age of eighteen, his family gave him a corsair of 14 guns;

and having been thrown by a tempest on the coast of Ireland, he burned

two English ships in the river Limerick. In 1694 his vessel of 40 guns

was captured by the English, and, being taken prisoner, he was confined

in the castle of Plymouth. He escaped, according to his own account, by

the help of a pretty shopwoman and her lover, a French refugee in the

English service. He then obtained command of a vessel of 48 guns, and

made a capture of English vessels on the Irish coast. In 1696 he made a

brilliant capture of Dutch vessels, and the king hearing an account of

the affair gave him a commission as _capitaine de fregate_ (commander)

in the royal navy. In 1704-1705 he desolated the coasts of England. In

1706 he was raised to the rank of captain of a vessel of the line. In

1707 he was made chevalier of the order of St Louis, and captured off

the Lizard the greater part of an English convoy of troops and munitions

bound for Portugal. His most glorious action was the capture in 1711 of

Rio Janeiro, on which he imposed a heavy contribution. In 1715 he was

made _chef d'escadre_, the rank which in the French navy answered to the

English commodore, and in 1728 commander of the order of St Louis and

_lieutenant general des armees navales_. In 1731 he commanded a squadron

for the protection of French commerce in the Levant. He died on the 27th

of September 1736.

See his own _Memoires_ (1740); and J. Poulain, _Duguay-Trouin_ (1882).

DU GUESCLIN, BERTRAND (c. 1320-1380), constable of France, the most

famous French warrior of his age, was born of an ancient but

undistinguished family at the castle of La Motte-Broons (Dinan). The

date of his birth is doubtful, the authorities varying between 1311 and

1324. The name is spelt in various ways in contemporary records, e.g.

Claquin, Klesquin, Guescquin, Glayaquin, &c. The familiar form is found

on his monument at St Denis, and in some legal documents of the time. In

his boyhood Bertrand was a dull learner, spending his time in open-air

sports and exercises, and could never read or write. He was remarkable

for ugliness, and was an object of aversion to his parents. He first

made himself a name as a soldier at the tournament held at Rennes in

1338 to celebrate the marriage of Charles of Blois with Jeanne de

Penthievre, at which he unseated the most famous competitors. In the war

which followed between Charles of Blois and John de Montfort, for the

possession of the duchy of Brittany, he served his apprenticeship as a

soldier (1341). As he was not a great baron with a body of vassals at

his command, he put himself at the head of a band of adventurers, and

fought on the side of Charles and of France. He distinguished himself by

a brilliant action at the siege of Vannes in 1342; and after that he

disappears from history for some years.

In 1354, having shortly before been made a knight, he was sent into

England with the lords of Brittany to treat for the ransom of Charles of

Blois, who had been defeated and captured by the English in 1347. When

Rennes and Dinan were attacked by the duke of Lancaster in 1356, Du

Guesclin fought continuously against the English, and at this time he

engaged in a celebrated duel with Sir Thomas Canterbury. He finally

forced his way with provisions and reinforcements into Rennes, which he

successfully defended till June 1357, when the siege was raised in

pursuance of the truce of Bordeaux. For this service he was rewarded

with the lordship of Pontorson. Shortly afterwards he passed into the

service of France, and greatly distinguished himself at the siege of

Melun (1359), being, however, taken prisoner a little later by Sir

Robert Knollys. In 1360, 1361 and 1362 he was continually in the field,

being again made prisoner in 1360. In 1364 he married, but was soon

again in the field, this time against the king of Navarre. In May 1364

he won an important victory over the Navarrese at Cocherel, and took the

famous Captal de Buch prisoner. He had previously been made lord of La

Roche-Tesson (1361) and chamberlain (1364); he was now made count of

Longueville and lieutenant of Normandy. Shortly afterwards, in aiding

Charles of Blois, Du Guesclin was taken prisoner by Sir John Chandos at

the battle of Auray, in which Charles was killed. The close of the

general war, however, had released great numbers of mercenaries (the

great companies) from control, and, as they began to play the part of

brigands in France, it was necessary to get rid of them. Du Guesclin was

ransomed for 100,000 crowns, and was charged to lead them out of France.

He marched with them into Spain, supported Henry of Trastamara against

Pedro the Cruel, set the former upon the throne of Castile (1366), and

was made constable of Castile and count of Trastamara. In the following

year he was defeated and captured by the Black Prince, ally of Pedro, at

Navarette, but was soon released for a heavy ransom. Once more he fought

for Henry, won the battle of Montiel (1369), reinstated him on the

throne, and was created duke of Molinas.

In May 1370, at the command of Charles V., who named him constable of

France, he returned to France. War had just been declared against

England, and Du Guesclin was called to take part in it. For nearly ten

years he was engaged in fighting against the English in the south and

the west of France, recovering from them the provinces of Poitou,

Guienne and Auvergne, and thus powerfully contributing to the

establishment of a united France. In 1373, when the duke of Brittany

sought English aid against a threatened invasion by Charles V., Du

Guesclin was sent at the head of a powerful army to seize the duchy,

which he did; and two years later he frustrated the attempt of the duke

with an English army to recover it. Finding in 1379 that the king

entertained suspicions of his fidelity to him, he resolved to give up

his constable's sword and retire to Spain. His resolution was at first

proof against remonstrance; but ultimately he received back the sword,

and continued in the service of France. In 1380 he was sent into

Languedoc to suppress disturbances and brigandage, provoked by the harsh

government of the duke of Anjou. His first act was to lay siege to the

fortress of Chateauneuf-Randon, but on the eve of its surrender the

constable died on the 13th of July 1380. His remains were interred, by

order of the king, in the church of St Denis. Du Guesclin lost his first

wife in 1371, and married a second in 1373, but he left no legitimate

children.

See biography by D.F. Jamison (Charleston, 1863), which was

translated into French (1866) by order of Marshal Count Randon,

minister of war; also S. Luce, _Histoire de B. du Guesclin_ (Paris,

1876).

DUHAMEL, JEAN BAPTISTE (1624-1706), French physicist, was born in 1624

at Vire in Normandy. He studied at Caen and Paris; wrote at eighteen a

tract on the _Spherics_ of Theodosius of Tripolis; then became an

Oratorian priest, and fulfilled with great devotion for ten years

(1653-1663) the duties of _cure_ at Neuilly-sur-Marne. He was appointed

in 1656 almoner to the king, and in 1666 perpetual secretary to the

newly founded Academy of Sciences. He died on the 6th of August 1706. He

published among other works: _Astronomia physica_ (1660) and _De

meteoris et fossilibus_ (1660), both in dialogue form; _De consensu

veteris et novae philosophiae_ (1663); _De corporum affectionibus_

(1672); _De mente humana_ (1673); _Regiae scientiarum Academiae

historia_, 1666-1696 (1698), new edition brought down to 1700 (1701);

_Institutiones biblicae_ (1698); followed by annotated editions of the

Psalms (1701), of the Book of Wisdom, &c. (1703), and of the entire

Bible in 1705.

DUHAMEL DU MONCEAU, HENRI LOUIS (1700-1782), French botanist and

engineer, son of Alexandre Duhamel, lord of Denainvilliers, was born at

Paris in 1700. Having been requested by the Academy of Sciences to

investigate a disease which was destroying the saffron plant in

Gatinais, he discovered the cause in a parasitical fungus which attached

itself to the roots, and this achievement gained him admission to the

Academy in 1728. From then until his death he busied himself chiefly

with making experiments in vegetable physiology. Having learned from Sir

Hans Sloane that madder possesses the property of giving colour to the

bones, he fed animals successively on food mixed and unmixed with

madder; and he found that their bones in general exhibited concentric

strata of red and white, whilst the softer parts showed in the meantime

signs of having been progressively extended. From a number of

experiments he was led to believe himself able to explain the growth of

bones, and to demonstrate a parallel between the manner of their growth

and that of trees. Along with the naturalist Buffon, he made numerous

experiments on the growth and strength of wood, and experimented also on

the growth of the mistletoe, on layer planting, on smut in corn, &c. He

was probably the first, in 1736, to distinguish clearly between the

alkalis, potash and soda. From the year 1740 he made meteorological

observations, and kept records of the influence of the weather on

agricultural production. For many years he was inspector-general of

marine, and applied his scientific acquirements to the improvement of

naval construction. He died at Paris on the 13th of August 1782.

His works are nearly ninety in number, and include many technical

handbooks. The principal are:--_Traite des arbres et arbustes qui se

cultivent en France en pleine terre_; _Elements de l'architecture

navale_; _Traite general des peches maritimes et fluviatiles_;

_Elements d'agriculture_; _La Physique des arbres_; _Des Semis et

plantations des arbres et de leur culture_; _De l'exploitation des

bois_; _Traite des arbres fruitiers_.

DUHRING, EUGEN KARL (1833-1901), German philosopher and political

economist, was born on the 12th of January 1833 at Berlin. After a legal

education he practised at Berlin as a lawyer till 1859. A weakness of

the eyes, ending in total blindness, occasioned his taking up the

studies with which his name is now connected. In 1864 he became _docent_

of the university of Berlin, but, in consequence of a quarrel with the

professoriate, was deprived of his licence to teach in 1874. Among his

works are _Kapital und Arbeit_ (1865); _Der Wert des Lebens_ (1865);

_Naturliche Dialektik_ (1865); _Kritische Geschichte der Philosophie_

(1869); _Kritische Geschichte der allgemeinen Principien der Mechanik_

(1872)--one of his most successful works; _Kursus der National- und

Sozialokonomie_ (1873); _Kursus der Philosophie_ (1875), entitled in a

later edition _Wirklichkeitsphilosophie; Logik und Wissenschaftstheorie_

(1878); _Der Ersatz der Religion durch Vollkommeneres_ (1883). He

published his autobiography in 1882 under the title _Sache, Leben und

Feinde_; the mention of "Feinde" (enemies) is characteristic. Duhring's

philosophy claims to be emphatically the philosophy of reality. He is

passionate in his denunciation of everything which, like mysticism,

tries to veil reality. He is almost Lucretian in his anger against

religion which would withdraw the secret of the universe from our direct

gaze. His "substitute for religion" is a doctrine in many points akin

to Comte and Feuerbach, the former of whom he resembles in his

sentimentalism. Duhring's opinions changed considerably after his first

appearance as a writer. His earlier work, _Naturliche Dialektik_, in

form and matter not the worst of his writings, is entirely in the spirit

of the Critical Philosophy. Later, in his movement towards Positivism,

he strongly repudiates Kant's separation of phenomenon from noumenon,

and affirms that our intellect is capable of grasping the whole reality.

This adequacy of thought to things is due to the fact that the universe

contains but one reality, i.e. matter. It is to matter that we must look

for the explanation both of conscious and of physical states. But matter

is not, in his system, to be understood with the common meaning, but

with a deeper sense as the substratum of all conscious and physical

existence; and thus the laws of being are identified with the laws of

thought. In this materialistic or quasi-materialistic system Duhring

finds room for teleology; the end of Nature, he holds, is the production

of a race of conscious beings. From his belief in teleology he is not

deterred by the enigma of pain; he is a determined optimist. Pain exists

to throw pleasure into conscious relief. In ethics Duhring follows Comte

in making sympathy the foundation of morality. In political philosophy

he teaches an ethical communism, and attacks the Darwinian principle of

struggle for existence. In economics he is best known by his vindication

of the American writer H.C. Carey, who attracts him both by his theory

of value, which suggests an ultimate harmony of the interests of

capitalist and labourer, and also by his doctrine of "national"

political economy, which advocates protection on the ground that the

morals and culture of a people are promoted by having its whole system

of industry complete within its own borders. His patriotism is fervent,

but narrow and exclusive. He idolized Frederick the Great, and denounced

Jews, Greeks, and the cosmopolitan Goethe. Duhring's clear, incisive

writing is disfigured by arrogance and ill-temper, failings which may be

extenuated on the ground of his physical affliction. He died in 1901.

See H. Druskowitz, _Eugen Duhring_ (Heidelberg, 1888); E. Doll, _Eugen

Duhring_ (Leipzig, 1892); F. Engels, _Eugen D.'s Umwalzung der

Wissenschaft_ (3rd ed., Stuttgart, 1894); H. Vaihinger, _Hartmann,

Duhring und Lange_ (1876). (H. St.)

DUIGENAN, PATRICK (1735-1816), Irish lawyer and politician, was the son

of a Leitrim Roman Catholic farmer named O'Duibhgeannain. Through the

tuition of the local Protestant clergyman, who was interested in the

boy, he got a scholarship in 1756 at Trinity College, Dublin, and

subsequently became a fellow. He was called to the Irish bar in 1767 and

obtained a rich practice. He is remembered, however, mainly as a

politician, on account of his opposition to Grattan, his support of the

Union, and his violent antagonism to Catholic emancipation. He was

elected member for Armagh in the first united parliament, and was a

well-known character at Westminster till he died on the 11th of April

1816.

DUIKER (diver), or DUIKERBOK, the Dutch name of a small S. African

antelope, scientifically known as _Cephalophus grimmi_; the popular name

alluding to its habit of diving into and threading its way through thick

bush. Scientifically the name is extended to include all the members of

the African genus _Cephalophus_, which, together with the Indian

chousingha, or four-horned antelope (_Tetraceros_), constitutes the

subfamily _Cephalophinae_. Duikers are animals of small or medium size,

usually frequenting thick forest. The horns, usually present in both

sexes, are small and straight, situated far back on the forehead; and

between them rises the crest-like tuft of hair from which the genus

takes its scientific name. The common or true duiker (_C. grimmi_) is

found in bush-country from the Cape to the Zambezi and Nyasaland, and

ranges northward on the west coast to Angola. The banded duiker (_C.

doriae_) from West Africa is golden brown with black transverse bands on

the back and loins. _C. sylvicultor_, of West Africa, is the largest

species, and approaches a donkey in size. (See ANTELOPE.) (R. L.*)

DUILIUS (or DUELLIUS), GAIUS, Roman general during the first

Carthaginian War and commander in the first Roman naval victory. In 260

B.C., when consul in command of the land forces in Sicily, he was

appointed to supersede his colleague Cn. Cornelius Scipio Asina,

commander of the fleet, who had been captured in the harbour of Lipara.

Recognizing that the only chance of victory lay in fighting under

conditions as similar as possible to those of a land engagement, he

invented a system of grappling irons (_corvi_) and boarding bridges, and

gained a brilliant victory over the Carthaginian fleet off Mylae on the

north coast of Sicily. He was accorded a triumph and the distinction of

being accompanied, when walking in the streets during the evening, by a

torchbearer and a flute-player. A memorial column (_columna rostrata_),

adorned with the beaks of the captured ships, was set up in honour of

his victory. The inscription upon it (see LATIN LANGUAGE, section 3,

"The Language as Recorded") has been preserved in a restored form in

pseudo-archaic language, ascribed to the reign of Claudius.

See _Corpus Inscriptionum Latinarum_, i. No. 195; Polybius i. 22;

Diod. Sic. xvii. 44; Frontinus, _Strat._ ii. 3; Florus ii. 2; Cicero,

_De senectute_, 13; Silius Italicus vi. 667; and PUNIC WARS.

DUISBURG, a town of Germany in the kingdom of Prussia, 15 m. by rail N.

from Dusseldorf, between the Rhine and the Ruhr, with which rivers it

communicates by a canal. It is an important railway centre. Pop. (1885)

47,519; (1900) 92,729; (1905), including many outlying townships then

recently incorporated, 191,551. It has six Roman Catholic and six

Protestant churches, among the latter the fine Gothic Salvatorkirche, of

the 15th century. It is well furnished with schools, which include a

school of machinery. Of modern erections, the concert hall, the law

courts and a memorial fountain to the cartographer Gerhard Kremer

(Mercator) are worthy of mention. There are important foundries, rolling

mills for copper, steel and brass plates, chemical works, saw-milling,

shipbuilding, tobacco, cotton, sugar, soap and other manufactures.

Duisburg was known to the Romans as _Castrum Deutonis_, and mentioned

under the Frankish kings as _Dispargum_. In the 12th century it attained

the rank of an imperial free town, but on being mortgaged in 1290 to

Cleves it lost its privileges. At the beginning of the 17th century it

was transferred to Brandenburg, and during the Thirty Years' War was

alternately occupied by the Spaniards and the Dutch. In 1655 the elector

Frederick William of Brandenburg founded here a Protestant university,

which flourished until 1802.

DUK-DUK, a secret society of New Britain or New Pomerania, Bismarck

Archipelago, in the South Pacific. The society has religious and

political as well as social objects. It represents a rough sort of law

and order through its presiding spirit Duk-Duk, a mysterious figure

dressed in leaves to its waist, with a helmet like a gigantic

candle-extinguisher made of network. Upon this figure women and children

are forbidden to look. Women, who are entitled in New Britain to their

own earnings and work harder than men, are the special victims of

Duk-Duk, who levies blackmail upon them if they are about during its

visits. These are generally timed to coincide with the hours at which

the women are out in the fields and therefore cannot help seeing the

figure. Justice is executed, fines extorted, taboos, feasts, taxes and

all tribal matters are arranged by the Duk-Duk members, who wear hideous

masks or chalk their faces. In carrying out punishments they are allowed

to burn houses and even kill people. Only males can belong to Duk-Duk,

the entrance fees of which vary from 50 to 100 fathoms of _dewarra_

(small cowrie shells strung on strips of cane). The society has its

secret signs and ritual, and festivals at which the presence of a

stranger would mean his death. Duk-Duk only appears with the full moon.

The society is now much discredited and is fast dying out.

See "Duk-Duk and other Customs or Forms of Expression of the

Melanesian's Intellectual Life," by Graf von Pfeil (_Journ. of

Anthrop. Instit._ vol. 27, p. 181).

DUKE (corresponding to Fr. _duc_, Ital. _duca_, Ger. _Herzog_), the

title of one of the highest orders of the European nobility, and of some

minor sovereign princes. The word "duke," which is derived from the Lat.

_dux_, a leader, or general, through the Fr. _duc_ (O. Fr. _dusc_,

_ducs_, _dus_), originally signified a leader, and more especially a

military chief, and in this latter sense was the equivalent of the A.S.

_heretoga_ (_here_, an army, and _teon_, from _togen_, to draw; Ger.

_ziehen_, _zog_; Goth, _tiuhan_; Lat. _ducere_) and the old Ger.

_herizog_. In this general sense the word survived in English literature

until the 17th century, but is now obsolete.

The origin of modern dukes is twofold. The _dux_ first appears in the

Roman empire under the emperor Hadrian, and by the time of the Gordians

has already a recognized place in the official hierarchy. He was the

general appointed to the command of a particular expedition and his

functions were purely military. In the 4th century, after the separation

of the civil and military administrations, there was a duke in command

of the troops quartered in each of the frontier provinces of the empire,

e.g. the _dux Britanniarum_. The number of dukes continually increased,

and in the 6th and 7th centuries there were _duces_ at Rome, Naples,

Rimini, Venice and Perugia. Gradually, too, they became charged with

civil as well as military functions, and even exercised considerable

authority in ecclesiastical administration. Under the Byzantine emperors

they were the representatives in all causes of the central power. The

Roman title of duke was less dignified than that of count (_comes_,

companion) which implied an honourable personal relation to the emperor

(see COUNT). Both titles were borrowed by the Merovingian kings for the

administrative machinery of the Frank empire, and under them the

functions of the duke remained substantially unaltered. He was a great

civil and military official, charged to watch, in the interests of the

crown, over groups of several _comitatus_, or countships, especially in

the border provinces. The sphere of the dukes was never rigidly fixed,

and their commission was sometimes permanent, sometimes temporary. Under

the Carolingians the functions of the dukes remained substantially the

same; but with the decay of the royal power in the 10th century, both

dukes and counts gained in local authority; the number of dukes became

for the time fixed, and finally title and office were made hereditary,

the relation to the crown being reduced to that of more or less shadowy

vassalage. (See FEUDALISM.)

Side by side with these purely official dukedoms, however, there had

continued to exist, or had sprung up, either independently or in more or

less of subjection to the Frank rulers, national dukedoms, such as those

of the Alemanni, the Aquitanians, and, later, of the Bavarians and

Thuringians. These were developed from the early Teutonic custom by

which the _herizog_ was elected by the nation as leader for a particular

campaign, as in the case of the _heretogas_ who had led the first Saxon

invaders into Britain. Tacitus says of the ancient Germans _reges ex

nobilitate, duces ex virtute sumunt_; i.e. they elected their dukes for

their warlike prowess only, and as purely military chiefs, whereas their

kings were chosen from a royal family of divine descent. Sometimes the

dukes so chosen succeeded in making their power permanent without taking

the style of king. To this national category belong, besides the great

German dukedoms, the dukes of Normandy, and the Lombard dukes of Spoleto

and Benevento, who traced their origin, not to an administrative office,

but to the leadership of Teutonic war bands. With the development of the

feudal system the distinction between the official and the national

dukedoms was more and more obliterated. By the 13th and 14th centuries

the title had become purely territorial, and implied no necessary

overlordship over counts and other nobles, who existed side by side with

the dukes as tenants-in-chief of the crown. From this time the

significance of the ducal title varies widely in different countries.

Whenever the crown got the better of the feudal spirit of independence,

as in France or Naples, it sank from being a sovereign title to a mere

social distinction, implying no political power, and not necessarily any

territorial influence. In northern Italy and in Germany, on the other

hand, where the crown had proved too weak to combat the forces of

disruption, it came ultimately to imply independent sovereignty.

The abolition of the Holy Empire in 1806 removed even the shadow of

vassalage from the German reigning dukes, who retain their sovereign

status under the new empire. Only one, however, the grand duke of

Luxemburg, is now both sovereign and independent. Besides the sovereign

dukes in Germany there are certain "mediatized" ducal houses, e.g. that

of Ratibor, which share with the dispossessed families of the Italian

sovereign duchies certain royal privileges, notably that of equality of

blood (_Ebenburtigkeit_). In Italy, where titles of nobility give no

precedence at court, that of duke (_duca_) has lost nearly all even of

its social significance owing to lavish creations by the popes and minor

sovereigns, and to the fact that the title often passes by purchase with

a particular estate. Political significance it has none. Some great

Italian nobles are dukes, notably the heads of the great Roman ducal

families, but not all Italian dukes are great nobles.

In France the title duke at one time implied vast territorial power, as

with the dukes of Burgundy, Normandy, Aquitaine and Brittany, who

asserted a practical independence against the crown, though it was not

till the 12th century that the title duke was definitely regarded as

superior to others. At first (in the 10th and 11th centuries) it had no

defined significance, and even a baron of the higher nobility called

himself in charters duke, count or even marquis, indifferently. In any

case the strengthening of the royal power gradually sapped the

significance of the title, until on the eve of the Revolution it implied

no more than high rank and probably territorial wealth.

There were, under the _ancien regime_, three classes of dukes in France:

(1) dukes who were peers (see PEERAGE) and had a seat in the parlement

of Paris; (2) hereditary dukes who were not peers; (3) "brevet" dukes,

created for life only. The French duke ranks in Spain with the "grandee"

(q.v.), and vice versa. In republican France the already existing titles

are officially recognized, but they are now no more than the badges of

distinguished ancestry. Besides the descendants of the feudal

aristocracy there are in France certain ducal families dating from

Napoleon I.'s creation of 1806 (e.g. ducs d'Albufera, de Montebello, de

Feltre), from Louis Philippe (duc d'Isly, and duc d'Audiffret-Pasquier),

and from Napoleon III. (Malakoff, Magenta, Morny).

In England the title of duke was unknown till the 14th century, though

in Saxon times the title ealdorman, afterwards exchanged for "earl," was

sometimes rendered in Latin as _dux_,[1] and the English kings till

John's time styled themselves dukes of Normandy, and dukes of Aquitaine

even later. In 1337 King Edward III. erected the county of Cornwall into

a duchy for his son Edward the Black Prince, who was thus the first

English duke. The second was Henry, earl of Lancaster, Derby, Lincoln

and Leicester, who was created duke of Lancaster in 1351. In Scotland

the title of duke was first bestowed in 1398 by Robert III. on his

eldest son David, who was made duke of Rothesay, and on his brother, who

became duke of Albany.

British dukes rank next to princes and princesses of the blood royal,

the two archbishops of Canterbury and York, the lord Chancellor, &c.,

but beyond this precedence they have no special privileges which are not

shared by peers of lower rank (see PEERAGE). Though their full style as

proclaimed by the herald is "most high, potent and noble prince," and

they are included in the _Almanach de Gotha_, they are not recognized as

the equals in blood of the crowned or mediatized dukes of the continent,

and the daughter of an English duke marrying a foreign royal prince can

only take his title by courtesy, or where, under the "house-laws" of

certain families, a family council sanctions the match. The eldest son

of an English duke takes as a rule by courtesy the second title of his

father, and ranks, with or without the title, as a marquess. The other

sons and daughters bear the titles "Lord" and "Lady" before their

Christian names, also by courtesy. A duke in the British peerage, if not

royal, is addressed as "Your Grace" and is styled "the Most Noble." (See

ARCHDUKE, GRAND DUKE, and, for the ducal coronet, CROWN AND CORONET.)

(W. A. P.)

Encyclopaedia Britannica, 11th Edition, "Dübner, Johann Friedrich" to "Dyeing" Volume 8, Slice 8 · 第 20 / 40 题