The construction of an hydraulic engine with powers nearly

similar to this, may be thus described: two buckets of unequal

size must be first suspended by a flexible chain turning on a

double roller or pulley; so that one bucket will be elevated to

the required height, while the other reaches the level of the

water to be raised; a small stream of water must then be made

to communicate with the largest bucket, which will speedily be

depressed and descend to the lower level, while the opposite

bucket will discharge its contents into a cistern or reservoir

at the top of the machine: the larger bucket being likewise

emptied by striking against a projecting beam placed there for

that purpose.

Mr. Sarjeant has described a very simple and powerful machine

for raising water, nearly similar in point of principle to the

above. An engraving of Mr. S.'s engine, together with an account

of its construction, is inserted in the Trans. of the Soc. of

Arts, vol. xix. p. 255.

No. XXII.

To make a river in a garden ebb and flow constantly, though twenty

foot over, with a child's force, in some private room, or place out

of sight, and a competent distance from it.

NOTE.

The very ingenious canal lock lately invented by Peter Bogaerts,

Esq., appears fully calculated for effecting this object. In

this lock, which from its simplicity is no less useful than

economical, a small portion of water is made to assist in

displacing several tons of that element, and there is no doubt

but a _child's force_ would raise double the quantity of water

described by the Marquis. In the model lately exhibited, a

weight of seven pounds was made to raise 10 _cwt._ of water more

than four feet in a few seconds.

No. XXIII.

To set a clock as within a castle, the water filling the trenches

about it; which shall show, by ebbing and flowing, the hours,

minutes, and seconds, and all the comprehensible motions of the

heavens, and counterlibration of the earth, according to Copernicus.

NOTE.

A tide-mill was several years back exhibited in the Museum of

that very ingenious mechanic, Mr. G. J. Hawkins; and a similar

prime mover has been suggested for the purpose of winding

a clock for a bell signal station on the Northern coast of

England. An astronomical machine as described by the Marquis,

must be provided with two barrels, each possessing a maintaining

power sufficient for the correct performance of the whole. In

addition to the line that supports the weight, or maintaining

power, each barrel must be provided with a revolving pulley

resembling those used for old thirty-hour clocks; with chains

passing over their axis; and the chains being attached to large

floats of wood will be alternately raised or depressed by the

ebbing and flowing of the tide; and thus in succession wind up

the weights which form the maintaining power of the clock. The

clepsydræ, or hydraulic clock, was in general use among the

ancients, and a stream of water was frequently employed to give

motion to planetary machines.

No. XXIV.

How to increase the strength of a spring to such a degree as to

shoot bombasses and bullets of an hundred pound weight a steeple

height, and a quarter of a mile off and more, stone bow-wise,

admirable for fire-works and astonishing of besieged cities, when,

without warning given by noise, they find themselves so forcibly and

dangerously surprised.

NOTE.

The strength of a compound spring formed of two metals may,

by the application of heat, be increased to any given power.

_Rationale._--Iron possessing an expansive power of 1/95, and

brass being only 1/60, the weaker metal will be bent by that

whose power of expansion is greater, and the impulse of the

spring increased in an equal ratio.

No. XXV.

How to make a weight, that cannot take up an hundred pound, and yet

shall take up two hundred pounds, and at the self same distance from

the centre; and so, proportionally, to millions of pounds.

NOTE.

This is indeed paradoxical, and so completely contrary to every

established principle or rule in science, that we may fairly set

it down among the number of those inventions which, by partaking

so highly of the marvellous, have contributed to bring the whole

_Century_ into disrepute.

No. XXVI.

To raise a weight so well and as forcibly with the drawing back of

the lever, as with the thrusting it forwards; and by that means to

lose no time in motion or strength. This I saw in the arsenal at

Venice.

NOTE.

The mere application of a crank, such as is used for the

_foot-lathe_, acting upon a drum and fly-wheel, with a chain

attached to move a second lever or upright sliding bar, will

fully effect the object here described.

No. XXVII.

A way to remove to and fro huge weights, with a most inconsiderable

strength, from place to place. For example: ten ton with ten pounds,

and less; the said ten pounds not to fall lower than it makes the

ten ton to advance or retreat upon a level.

NOTE.

A weight attached to an ordinary crane may be moved with the

utmost facility; and it is well known that the employment of

friction wheels furnishes a ready medium of conveyance for

masses of iron and stone of the greatest magnitude.

No. XXVIII.

A bridge, portable upon a cart, with six horses, which, in a few

hours' time, may be placed over a river half a mile broad, whereon,

with much expedition, may be transported, horse, foot, and cannon.

NOTE.

A portable bridge, or rather ferry boat, calculated for crossing

wide and deep rivers, was frequently employed in ancient

warfare, and is still used for the conveyance of horses and

passengers in many parts of Europe. The apparatus for this

purpose may readily be attached to the banks of the most

rapid river, as it merely consists in the employment of two

ropes or wires, tightened by means of a winch, on which slide

pullies connected with a large floating tank or waggon, that is

afterwards intended to be employed as a medium of conveyance.

The apparatus being thus prepared, a communication may readily

be opened by means of two cords between the opposite banks of

the river.

No. XXIX.

A portable fortification, able to contain five hundred fighting

men, and yet, in six hours' time, may be set up and made cannon

proof, upon the side of a river or pass, with cannon mounted upon

it, and as complete as a regular fortification, with half-moons and

counterscarps.

NOTE.

It is difficult to attempt an elucidation of this or the

following articles; but the annexed extract from the _General

Evening Post_ for 1747 appears to throw some light on No. XXX.

"On the 11th instant, Mr. James Allis was presented to the

Royal Society, with a new invented cannon, which charges and

discharges both at one time, and twenty times in a minute: he

had their thanks, and a handsome present."

No. XXX.

A way, in one night's time, to raise a bulwark, twenty or thirty

foot high, cannon proof, and cannon mounted upon it; with men to

overlook, command and batter a town; for, though it contain but four

pieces, they shall be able to discharge two hundred bullets each

hour.

NOTE.

Vide the preceding Article.

Since writing the above, the Editor has been called to witness

the effects of highly elastic vapour applied to the propelling

of leaden bullets, in an apparatus contrived by Mr. Perkins; and

these destructive missile engines are capable of discharging

nearly two hundred bullets, in one sixtieth part of the time

described by our author in the present Article.

No. XXXI.

A way how safely and speedily to make an approach to a castle or

town-wall, and over the very ditch, at noon-day.

NOTE.

A wheel carriage, of sufficient strength to support an heavy

iron tower, must first be provided. It may be constructed of

thick wrought iron, with door, &c., of the same material, and

hung round with sand-bags, through the interstices of which

may project from six to eight small guns to protect it from

musquetry. The most eligible method of moving the tower appears

to be by fixing small handles to the axles of the wheels, which

may be turned at pleasure by those within the walls. To prevent

any attempt of the enemy who may sally forth to drag the machine

within the walls of the town, &c., it will be adviseable to arm

the wheels with long steel studs, which, when the handles are

fastened within, will render it immoveable.

This tower, though but of little use in modern warfare, appears

well adapted for reconnoitring the walls of a fortified town,

and, if fixed upon a hollow iron vessel, will possess the

further advantage of crossing rivers and moats. Nearly similar

machines are described by Vitruvius, and other authors who treat

on military engineering.

No. XXXII.

How to compose an universal character, methodical and easy to be

written, yet intelligible in any language; so that if an Englishman

write it in English, a Frenchman, Italian, Spaniard, Irish or

Welchman, being scholars, yea, Grecian or Hebritian, shall as

perfectly understand it in their own tongue as if they were English,

distinguishing the verbs from the nouns, the numbers, tenses, and

cases, as properly expressed in their own language as it was written

in English.

NOTE.

The great difficulty which the various contrivers of a universal

character or philosophical language have hitherto had to

encounter, from the Marquis of Worcester and Bishop Wilkins

down to M. Lodowick, appears to have arisen rather from the

difficulty attendant on engaging the several nations to use it,

than in inventing the most convenient character.

The _real character_ of Bishop Wilkins, which there is every

reason to suppose strongly resembled that of his contemporary

the Marquis, was repeatedly recommended by Dr. Hook, who, to

engage the world in the study of it, published some curious

inventions of his own, tending to its illustration. But the most

accurate notice on the history of _pasigraphy_ yet published

appeared in the _Spect. du Nord_ for May, 1798. The anonymous

author of this interesting memoir commences by a brief inquiry

into the nature and utility of the universal character, and then

proceeds with this very just eulogium on our immortal countryman

Bacon.

It is generally allowed that Lord Bacon of Verulam comprehended

nearly the whole circle of human knowledge at the period in

which he lived, and foresaw most of the discoveries which have

since been made. He laid the foundation of an Encyclopædia,

and was very near discovering various important philosophical

results, such as the weight of the air, &c. If we open his

book on the progress of the sciences, we shall find the notion

of a pasigraphy in the chapter entitled _The Instrument of

Discourse_. "It is possible to invent such signs," says he, "for

the communication of our thoughts, that people of different

languages may, by this means, understand each other; and

that each may read immediately in his own language, a book

which shall be written in another." But Bacon did not think

of confining this to twelve characters: on the contrary, he

requires a great number, at least as many as the number of

radical words; on which head he quotes the example of the

Chinese; "and although," adds he, "our alphabet may appear

more commodious than this method of writing, the thing itself

nevertheless is well deserving of attention. The problem relates

to the signs by which thoughts may be rendered current; and,

as money may be struck of other materials as well as gold and

silver, it is possible likewise to discover other signs of

things as well as letters and words."

Des Cartes, in his third letter to father Mercennus, discusses

the invention of a Frenchman, whom he does not name, but who, by

means of a certain language and an artificial writing, pretended

to understand all the different idioms. He remarks on this

subject, that it would be very possible to compose a short and

convenient grammar, with general signs, which should render all

foreign languages intelligible.

In the year 1661, John Joachim Becher published a Latin folio,

the title of which was "Characters for the Universal Knowledge

of Languages: a Stenographic Invention hitherto unheard of."

This unheard of invention consists of a method by which a native

of any country may make himself understood by all foreigners by

writing in his own language, and be enabled also to comprehend

what they write in theirs. It was truly at that time a thing

unheard of; for Becher, being the first who had given a complete

treatise on this art, may be considered as the inventor.

He begins his work by a series of highly interesting

observations upon general grammar, and the fundamental relations

of all languages with regard to each other. He gives a learned

comparative table of the relations and harmony of the Latin,

the Greek, the Hebrew, the Arabian, the Sclavonian, the French,

and the German. This work cannot be too highly esteemed, and

assuredly was not unknown to the author of the work _Du Monde

Primitif_. A Latin dictionary then follows, in which every word

corresponds with one or more Arabic numeral figures arbitrarily

taken. Every number is assumed as distinctive, or denoting the

same word in all languages; and consequently nothing more is

required than to compose a dictionary for each, similar to that

which he has given for the Latin.

There is likewise a table of declensions and conjugations, which

presents certain determinate numbers for all the cases, moods,

tenses, or persons. By means of this general disposition, when

a Frenchman is desirous of writing to a German the following

phrase, _La guerre est un grand mal_ (war is a great evil), he

seeks in his index, _guerre_, _être_, _grand_, _mal_; and he

writes the correspondent numbers,

13, 33, 67, 68.

The sentence might be understood by these four characteristic

numbers; but, to leave no room for ambiguity, he says, _Guerre_

is the nominative case, and finds, as the characteristic of

the nominative, the Arabic figure 1. _Est_ is the third person

singular of the indicative mood, present tense, of which the

characteristic is 15. To _grand_, and to _mal_, belong likewise

the figure 1, for the nominative case; he will therefore write

13.1 | 33.15 | 67.1 | 68.1 |

where the numbers are separated by small vertical bars to

prevent confusion. It may easily be conceived how, by the

inverse method, the German will find in his tables the words

denoted by the ciphers, which will form _Der krieg ist ein

grosses uebel_.

This invention of Becher, which is the same thing nearly with

regard to language, as algebra is to arithmetic, is possessed

of considerable simplicity, and even a few hours practice will

render it easy. A great variety of attempts on this principle

may be found in Sturmius, _Essais d'Expériences Curieuses_.

In the same year, George Dalgaru, an Englishman, published in

London a work of which the prolix title is sufficient to show

its object. It runs thus, "The Art of Signs, or an Universal

Character and Philosophical Language, by Means of which, Men

of the most different Idioms may, in the Space of two Weeks,

learn to communicate, whether by Word of Mouth or by Writing,

all their Thoughts, as clearly as in their Mother Tongue.

Besides which, young Persons may therein learn the Principles of

Philosophy, and the Practice of true Logic, more speedily and

more readily than in the ordinary philosophic Writings." The

book of Dalgaru is written in Latin, and Beckman accuses him of

extreme pedantry. His characters likewise were ciphers.

Joachim Frisichius, professor at the Gymnasium at Riga, was

employed on a similar attempt, his object being to introduce a

natural, rational, and universal language, of which some sheets

printed at Thorn in 1681 contain the only specimen extant.

The death of the author interrupted his labours. He purposed

to call his new language Ludovicean, in honour of Louis XIV.,

under whose patronage he pursued his labours; a prince whose

generosity was extended to the learned of all countries.

Athanasius Kircher also published a work on this subject,

entitled "A New and Universal Polygraphia, deduced from the

Art of Combination," and by means of which, says Morhoff,

(Polyhistor, l. ii. c. 5.) he who understands one language only

may correspond in writing with all the nations of the earth.

It would perhaps be unjust to pass in silence the little-known

work of father Besnier, a Jesuit, who, in a book entitled _La

Réunion des Langues, ou l'Art de les apprendre toutes par une

seule_, printed at Paris in 1674, has furnished many important

hints for the cultivation of this branch of language.

The most remarkable work, however, which has been written on

this subject, is that for which we are indebted to Bishop

Wilkins, the brother-in-law of Cromwell: it is entitled,

"An Essay towards a Real Character and a Philosophical

Language, London, 1668." It is divided into four parts: 1st,

Considerations on the various languages, their defects and

imperfections, from which a philosophic language ought to

be exempt. 2dly, Philosophical inquiries respecting all the

things and notions to which proper names ought to be assigned.

3dly, The organic science of native grammar considered as the

necessary means of representing simple ideas in discourse.

4thly, The application of the general rules to every character

and language. Examples, &c. This concise outline sufficiently

shows the importance of the work.

In his appendix, the author explains the utility of a method of

writing without alphabetic characters, by means of signs, which

are to be used to denote all the principal ideas, the relative

attributes being designated by small strokes added at right,

acute, or obtuse angles, to the right or left; &c. Of principal

or chief ideas he admits but forty, under which he ranges

all the others, by that means forming a series of categories.

His new language is calculated to afford great facility of

comprehension, and new openings to the various processes of

science.

After so many attempts, more or less philosophical, and of

different degrees of perfection, with others probably of

which we know nothing, we must not overlook the efforts of

the celebrated Leibnitz. His History and Development of a

Characteristic Universal Language is very generally known.

Leibnitz considered his universal characteristic as the art of

inventing and judging. He stated his conviction that an alphabet

might be formed, and of this alphabet such words as would

afford a language capable of giving mathematical precision to

all the sciences. "Men may thus acquire," says he, "as it were,

a new organ, which would add energy to their moral faculties,

as the microscopic lens increases the power of the eye. The

compass is not more highly valuable to the navigator, than this

philosophical language would be to him who embarks on the sea of

reason and experiments, which is now so full of danger."

In concluding this brief sketch, it may be enough to notice the

ingenious method of the Abbé de l'Epée, who, by means of various

gestures, dictated to his various deaf and dumb pupils certain

discourses, which they wrote with equal readiness in four

languages.

No. XXXIII.

To write with a needle and thread, white, or any other colour, upon

white, or any other colour, so that one stitch shall significantly

show any letter, and as readily and as easily show the one letter as

the other, and fit for any language.

NOTE.

Vide Article LXXV.

No. XXXIV.

To write by a knotted silk string, so that every knot shall signify

any letter, with comma, full-point, or interrogation; and as legible

as with pen and ink upon white paper.

NOTE.

This very ingenious mode of secret writing is the most simple

of any suggested by our author. A silk string of considerable

length having been provided, it will be necessary to furnish the

persons corresponding with a key or graduated gauge, by means of

which the writing will be rendered intelligible. Having procured

a duplicate or corresponding gauge it may then be commenced,

1/16 of an inch being allowed for the first letter, 1/4 for the

second, 3/8 for the third, and so on, in equal proportions,

through the whole alphabet. Should this arrangement be found to

extend the line to an inconvenient length, it may be advisable

to form a certain number of changes on three different lengths,

as in No. LII.; though the former way is the least difficult.

No. XXXV.

The like by the fringe of gloves.

NOTE.

The principle of this and the four following Articles is the

same as the preceding, with this difference, that in the first,

the letters, or words, are formed by knotting the fringe, to

which the gauge is afterwards applied; in the second, and most

desirable way, the beads are set to the required distance; by

the third, the gloves are pierced or pricked in rows, according

to the divisions on the gauge; and by the fourth and fifth, the

rows of parallel holes in a sieve or lantern are stopped at the

required distances, and the gauge applied as before.

No. XXXVI.

By stringing of bracelets.

No. XXXVII.

By pinked gloves.

No. XXXVIII.

By holes in the bottom of a sieve.

No. XXXIX.

By a lattin or candlestick lantern.

No. XL.

By the _smell_.

NOTE.

Pegs of sandal, cedar, and rose woods, may be so varied, that

a person writing in the dark will, by the smell, readily

distinguish the formation of words and sentences.

No. XLI.

By the _taste_.

NOTE.

For writing by the _taste_, it will be necessary to immerse

an equal number of the pegs or beads in weak solutions of

alum, aloes, common salt, or any other liquid whose taste is

sufficiently pungent or aromatic, to be distinguished when dry,

on applying the tongue to them for that purpose.

No. XLII.

By the _touch_.

By these three senses, as perfectly, distinctly, and unconfusedly,

yea, as readily as by the sight.

NOTE.

This object may be readily attained by the use of raised

moveable types and the heavy pressure of an iron pen or mallet.

A mode of corresponding by the touch has been suggested by M.

Haüy, and by this means the blind have been fully instructed,

not only in the rudiments of language, but also in the liberal

arts and sciences. M. Haüy's method of preparing the books, &c.,

which is simple and easy of attainment, is as follows: when the

types have been arranged and fixed, a page of very strong paper

is moistened, so as to be capable of receiving and retaining

impressions, and laid upon the types; and then by the operation

of a press or hammer, frequently repeated over the surface, the

impression of the type is made to rise on the opposite side of

the paper; and it continues, when dry, not only "obvious to the

sight," but to the touch, and is not easily effaced. On the

upper side of the paper, the letters appear in their proper

position; and by their sensible elevation above the common

surface, the blind may easily read them with their fingers. For

epistolary correspondence it will be necessary to moisten the

paper and use a metal pen.

No. XLIII.

How to vary each of these, so that ten thousand may know them, and

yet keep the understanding part from any but their correspondent.

NOTE.

This may be effected by changing the order of their arrangement,

which can only be ascertained by a previous examination of a key

chosen for that purpose.

No. XLIV.

To make a key of a chamber door, which to your sight hath its wards

and rose-pipe but paper thick, and yet at pleasure, in a minute of

an hour, shall become a perfect pistol, capable to shoot through a

breastplate, commonly of carabine proof, with prime, powder, and

fire-lock, undiscoverable in a stranger's hand.

NOTE.

The _rose-pipe_ must in this case be formed like the sliding

tubes of a telescope; that next the wards being furnished with

a screw at the inner and capable of holding the whole of them

together. A small quantity of detonating powder being first

placed within, the pipe may be readily discharged by tightening

of the screw.

No. XLV.

How to light a fire and a candle, at what hour of the night one

awaketh, without rising or putting one's hand out of bed. And

the same thing to be a serviceable pistol at pleasure; yet, by a

stranger, not knowing the secret, seemeth but a dexterous tinder-box.

NOTE.

The Century of Inventions of the Marquis of Worcester from the Original MS., with Historical and Explanatory Notes and a Biographical Memoir · 第 4 / 9 段