"I see why Mabel spoke first of 'Frank,'" said Colonel Ingham. "And I

think that she did very well to bring Edgeworth in as she has done. And

Edgeworth, though I had not thought of him before, is very fit to be one

of our inventors, not so much for his individual accomplishments, which

were little more than curious,--telegraph and all,--as for being a good

representative of his age. Those of you who know a little of the century

between 1750 and 1850 know that it was an age to which many of the

secrets of physical science were being opened for the first time.

Everybody was going back to Nature to see what he could learn from her.

This movement swept all over France and England. Every gentleman

dabbled in the sciences, and made his experiments and inventions.

Voltaire in France had a great laboratory made for him in which he

passed some years in chemical experiments. It was the age, too, of great

inventions,--of the application of physical forces to the life of man.

The invention of the steam-engine by Watt, and the applications of it to

the locomotive and the steamboat, came along toward the end of this

period, and marked the work of the greatest men. But every one could not

invent a steam-engine. So, by the hundreds of country gentlemen who

studied science, chemistry, and astronomy, and the rest, there were

constructed hundreds of orreries, globes, carriages, model-telegraphs,

and such things; and it is of these men that Edgeworth is the best, or

at least the most available, representative, on account of his very

interesting memoirs.

"Such books as 'Harry and Lucy' and 'Frank' are the mirror of this

movement. But to this is joined something more, which John Morley speaks

of in saying, 'An age touched by the spirit of hope turns naturally to

the education of the young.' Then people knew that their own times were

about as worthless as times could well be; but as they learned more,

they began to hope that things were improving, and that the children

might see better times than those in which the fathers lived. And as

physical science was to them an all-important factor in this approaching

millennium, they took pains to teach these things to the young. Any of

you who have read 'Frank' or 'Sandford and Merton' will see what I mean.

It was the hope that the children might be able to take the work where

the fathers left it, and carry it on. And the children did. But I do not

believe that any one of these eighteenth-century theorists had the first

or vaguest idea of the point to which his children and grandchildren

would carry his work.

"So much for Mr. Edgeworth from my point of view," concluded the

Colonel. "You will hear what he thought of himself from Bedford."

EDGEWORTH'S TELEGRAPH.

[DESCRIBED BY HIMSELF.]

Bets of a rash or ingenious sort were in fashion in those days, and one

proposal of what was difficult and uncommon led to another. A famous

match was at that time pending at Newmarket between two horses that were

in every respect as nearly equal as possible. Lord March, one evening at

Ranelagh, expressed his regret to Sir Francis Delaval that he was not

able to attend Newmarket at the next meeting. "I am obliged," said he,

"to stay in London. I shall, however, be at the Turf Coffee House. I

shall station fleet horses on the road to bring me the earliest

intelligence of the event of the race, and shall manage my bets

accordingly."

I asked at what time in the evening he expected to know who was winner.

He said about nine in the evening. I asserted that I should be able to

name the winning horse at four o'clock in the afternoon. Lord March

heard my assertion with so much incredulity as to urge me to defend

myself; and at length I offered to lay five hundred pounds, that I would

in London name the winning horse at Newmarket at five o'clock in the

evening of the day when the great match in question was to be run. Sir

Francis, having looked at me for encouragement, offered to lay five

hundred pounds on my side; Lord Eglintoun did the same; Shaftoe and

somebody else took up their bets; and the next day we were to meet at

the Turf Coffee House, to put our bets in writing. After we went home, I

explained to Sir Francis Delaval the means that I proposed to use. I had

early been acquainted with Wilkins's "Secret and Swift Messenger;" I had

also read in Hooke's Works of a scheme of this sort, and I had

determined to employ a telegraph nearly resembling that which I have

since published. The machinery I knew could be prepared in a few days.

Sir Francis immediately perceived the feasibility of my scheme, and

indeed its certainty of success. It was summer-time; and by employing a

sufficient number of persons, we could place our machines so near as to

be almost out of the power of the weather. When we all met at the Turf

Coffee House, I offered to double my bet; so did Sir Francis. The

gentlemen on the opposite side were willing to accept my offer; but

before I would conclude my wager, I thought it fair to state to Lord

March that I did not depend upon the fleetness or strength of horses to

carry the desired intelligence, but upon other means, which I had, of

being informed in London which horse had actually won at Newmarket,

between the time when the race should be concluded and five o 'clock in

the evening. My opponents thanked me for my candor and declined the bet.

My friends blamed me extremely for giving up such an advantageous

speculation. None of them, except Sir Francis, knew the means which I

had intended to employ; and he kept them a profound secret, with a view

to use them afterwards for his own purposes. With that energy which

characterized everything in which he engaged, he immediately erected,

under my directions, an apparatus between his house and part of

Piccadilly,--an apparatus which was never suspected to be telegraphic.

I also set up a night telegraph between a house which Sir F. Delaval

occupied at Hampstead, and one to which I had access in Great Russell

Street, Bloomsbury. This nocturnal telegraph answered well, but was too

expensive for common use.

Upon my return home to Hare Hatch, I tried many experiments on different

modes of telegraphic communication. My object was to combine secrecy

with expedition. For this purpose I intended to employ windmills, which

might be erected for common economical uses, and which might at the same

time afford easy means of communication from place to place upon

extraordinary occasions. There is a windmill at Nettlebed, which can be

distinctly seen with a good glass from Assy Hill, between Maidenhead and

Henly, the highest ground in England south of the Trent. With the

assistance of Mr. Perrot, of Hare Hatch, I ascertained the

practicability of my scheme between these places, which are nearly

sixteen miles asunder.

I have had occasion to show my claim to the revival of this invention in

modern times, and in particular to prove that I had practised

telegraphic communication in the year 1767, long before it was ever

attempted in France. To establish these truths, I obtained from Mr.

Perrot, a Berkshire gentleman, who resided in the neighborhood of Hare

Hatch, and who was witness to my experiments, his testimony to the facts

which I have just related. I have his letter; and before its contents

were published in the Memoirs of the Irish Academy for the year 1796, I

showed it to Lord Charlemont, President of the Royal Irish Academy.

MR. EDGEWORTH'S TELEGRAPH IN IRELAND.

[DESCRIBED BY HIS DAUGHTER.]

In August, 1794, my father made a trial of his telegraph between

Pakenham Hall and Edgeworth Town, a distance of twelve miles. He found

it to succeed beyond his expectations; and in November following he made

another trial of it at Collon, at Mr. Foster's, in the county of Louth.

The telegraphs were on two hills, at fifteen miles' distance from each

other. A communication of intelligence was made, and an answer received,

in the space of five minutes. Mr. Foster--my father's friend, and the

friend of everything useful to Ireland--was well convinced of the

advantage and security this country would derive from a system of quick

and certain communication; and, being satisfied of the sufficiency of

this telegraph, advised that a memorial on the subject should be drawn

up for Government. Accordingly, under his auspices, a memorial was

presented, in 1795, to Lord Camden, then Lord Lieutenant. His Excellency

glanced his eye over the paper, and said that he did not think such an

establishment necessary, but desired to reserve the matter for further

consideration. My father waited in Dublin for some time. The suspense

and doubt in which courtiers are obliged to live is very different from

that state of philosophical doubt which the wise recommend, and to which

they are willing to submit. My father's patience was soon exhausted. The

county in which he resided was then in a disturbed state; and he was

eager to return to his family, who required his protection. Besides, to

state things exactly as they were, his was not the sort of temper

suited to attendance upon the great.

The disturbances in the County of Longford were quieted for a time by

the military; but again, in the autumn of the ensuing year (September,

1796), rumors of an invasion prevailed, and spread with redoubled force

through Ireland, disturbing commerce, and alarming all ranks of

well-disposed subjects. My father wrote to Lord Carhampton, then

Commander-in-Chief, and to Mr. Pelham (now Lord Chichester), who was

then Secretary in Ireland, offering his services. The Secretary

requested Mr. Edgeworth would furnish him with a memorial. Aware of the

natural antipathy that public men feel at the sight of long memorials,

this was made short enough to give it a chance of being read.

(Presented, Oct. 6, 1796.)

Mr. Edgeworth will undertake to convey intelligence from Dublin to Cork,

and back to Dublin, by means of fourteen or fifteen different stations,

at the rate of one hundred pounds per annum for each station, as long as

Government shall think proper; and from Dublin to any other place, at

the same rate, in proportion to the distance: provided that when

Government chooses to discontinue the business, they shall pay one

year's contract over and above the current expense, as some compensation

for the prime cost of the apparatus, and the trouble of the first

establishment.

In a letter of a single page, accompanying this memorial, it was stated,

that to establish a telegraphic corps of men sufficient to convey

intelligence to every part of the kingdom where it should be necessary,

stations tenable against a mob and against musketry might be effected

for the sum of _six or seven thousand pounds_. It was further observed,

that of course there must be a considerable difference between a partial

and a general plan of telegraphic communication; that Mr. Edgeworth was

perfectly willing to pursue either, or to adopt without reserve any

better plan that Government should approve. Thanks were returned, and

approbation expressed.

Nothing now appeared in suspense except the _mode_ of the establishment,

whether it should be civil or military. Meantime Mr. Pelham spoke of the

Duke of York's wish to have a reconnoitring telegraph, and observed that

Mr. Edgeworth's would be exactly what his Royal Highness wanted. Mr.

Edgeworth in a few days constructed a portable telegraph, and offered it

to Mr. Pelham. He accepted it, and at his request my brother Lovell

carried it to England, and presented it to the Duke from Mr. Pelham.

During the interval of my brother's absence in England, my father had no

doubt that arrangements were making for a telegraphic establishment

in Ireland. But the next time he went to the castle, he saw

signs of a change in the Secretary's countenance, who seemed much

hurried,--promised he would write,--wrote, and conveyed, in diplomatic

form, a final refusal. Mr. Pelham indeed endeavored to make it as civil

as he could, concluding his letter with these words:--

The utility of a telegraph may hereafter be considered greater; but I

trust that at all events those talents which have been directed to this

pursuit will be turned to some other object, and that the public will

have the benefit of that extraordinary activity and zeal which I have

witnessed on this occasion in some other institution which I am sure

that the ingenuity of the author will not require much time to suggest.

I have the honor to be, with great respect, &c,

T. PELHAM.

DUBLIN CASTLE, Nov. 17, 1796.

Of his offer to establish a communication from the coast of Cork to

Dublin, at _his own expense_, no notice was taken. "He had, as was known

to Government, expended £500 of his own money; as much more would have

erected a temporary establishment for a year to Cork. Thus the utility

of this invention might have been tried, and the most prudent government

upon earth could not have accused itself of extravagance in being

partner with a private gentleman in an experiment which had, with

inferior apparatus, and at four times the expense, been tried in France

and England, and approved." The most favorable supposition by which we

can account for the conduct of the Irish Government in this business is

that a superior influence in England forbade them to proceed. "It must,"

said my father, "be mortifying to a viceroy who comes over to Ireland

with enlarged views and benevolent intentions, to discover, when he

attempts to act for himself, that he is peremptorily checked; that a

circle is chalked round him, beyond which he cannot move."

No personal feelings of pique or disgust prevented my father from

renewing his efforts to be of service to his country. Two months after

the rejection of his telegraph, on Friday the 30th of December, 1796,

the French were on the Irish coasts. Of this he received intelligence

late at night. Immediately he sent a servant express to the Secretary,

with a letter offering to erect telegraphs, which he had in Dublin, on

any line that Government should direct, and proposing to bring his own

men with him; or to join the army with his portable telegraphs, to

reconnoitre. His servant was sent back with a note from the Secretary,

containing compliments and the promise of a speedy answer; no further

answer ever reached him. Upon this emergency he could, with the

assistance of his friends, have established an immediate communication

between Dublin and the coast, which should not have cost the country one

shilling. My father showed no mortification at the neglect with which he

was treated, but acknowledged that he felt much "concern in losing an

opportunity of saving an enormous expense to the public, and of

alleviating the anxiety and distress of thousands." A telegraph was most

earnestly wished for at this time by the best-informed people in

Ireland, as well as by those whose perceptions had suddenly quickened at

the view of immediate danger. Great distress, bankruptcies, and ruin to

many families, were the consequences of this attempted invasion. The

troops were harassed with contrary orders and forced marches, for want

of intelligence, and from that indecision which must always be the

consequence of insufficient information. Many days were spent in terror

and in fruitless wishes for the English fleet. One fact may mark the

hurry and confusion of the time; the cannon and the ball sent to Bantry

Bay were of different calibre. At last Ireland was providentially saved

by the change of wind, which prevented the enemy from effecting a

landing on her coast.

That the public will feel little interest in the danger of an invasion

of Ireland which might have happened in the last century; that it can be

of little consequence to the public to hear how or why, twenty years

ago, this or that man's telegraph was not established,--I am aware; and

I am sensible that few will care how cheaply it might have been

obtained, or will be greatly interested in hearing of generous offers

which were not accepted, and patriotic exertions which were not

permitted to be of any national utility. I know that as a biographer I

am expected to put private feelings out of the question; and this duty,

as far as human nature will permit, I hope I have performed.

The facts are stated from my own knowledge, and from a more detailed

account in his own "Letter to Lord Charlemont on the Telegraph,"--a

political pamphlet, uncommon at least for its temperate and good-humored

tone.

Though all his exertions to establish a telegraph in Ireland were at

this time unsuccessful, yet he persevered in the belief that in future

modes of telegraphic communication would be generally adopted; and

instead of his hopes being depressed, they were raised and expanded by

new consideration of the subject in a scientific light. In the sixth

volume of the "Transactions of the Royal Irish Academy," he published an

"Essay on the Art of Conveying Swift and Secret Intelligence," in which

he gives a comprehensive view of the uses to which the system may be

applied, and a description, with plates, of his own machinery. Accounts

of his apparatus and specimens of his vocabulary have been copied into

various popular publications, therefore it is sufficient here to refer

to them. The peculiar advantages of his machinery consist, in the first

place, in being as free from friction as possible, consequently in its

being easily moved, and not easily destroyed by use; in the next place,

on its being simple, consequently easy to make and to repair. The

superior advantage of his vocabulary arises from its being

undecipherable. This depends on his employing the numerical figures

instead of the alphabet. With a power of almost infinite change, and

consequently with defiance of detection, he applies the combination of

numerical figures to the words of a common dictionary, or to any length

of phrase in any given vocabulary. He was the first who made this

application of figures to telegraphic communication.

Much has been urged by various modern claimants for the honor of the

invention of the telegraph. In England the claims of Dr. Hooke and of

the Marquis of Worcester to the original idea are incontestable. But the

invention long lay dormant, till wakened into active service by the

French. Long before the French telegraph appeared, my father had tried

his first telegraphic experiments. As he mentions in his own narrative,

he tried the use of windmill sails in 1767 in Berkshire; and also a

nocturnal telegraph with lamps and illuminated letters, between London

and Hampstead. He refers for the confirmation of the facts to a letter

of Mr. Perrot's, a Berkshire gentleman who was with him at the time. The

original of this letter is now in my possession. It was shown in 1795 to

the President of the Royal Irish Academy. The following is a copy of

it:--

DEAR SIR,--I perfectly recollect having several conversations with you

in 1767 on the subject of a speedy and secret conveyance of

intelligence. I recollect your going up the hills to see how far and how

distinctly the arms (and the position of them) of Nettlebed Windmill

sails were to be discovered with ease.

As to the experiments from Highgate to London by means of lamps, I was

not present at the time, but I remember your mentioning the circumstance

to me in the same year. All these particulars were brought very strongly

to my memory when the French, some years ago, conveyed intelligence by

signals; and I then thought and declared that the merit of the invention

undoubtedly belonged to you. I am very glad that I have it in my power

to send you this confirmation, because I imagine there is no other

person now living who can bear witness to your observations in

Berkshire.

I remain, dear Sir,

Your affectionate friend,

JAMES L. PERROT.

BATH, Dec. 9, 1795.

Claims of priority of invention are always listened to with doubt, or,

at best, with impatience. To those who bring the invention to

perfection, who actually adapt it to use, mankind are justly most

grateful, and to these, rather than to the original inventors, grant the

honors of a triumph. Sensible of this, the matter is urged no farther,

but left to the justice of posterity.

I am happy to state, however, one plain fact, which stands independent

of all controversy, that my father's was the _first_, and I believe the

only, telegraph which ever spoke across the Channel from Ireland to

Scotland. He was, as he says in his essay on this subject, "ambitious of

being the first person who should connect the islands more closely by

facilitating their mutual intercourse;" and on the 24th of August, 1794,

my brothers had the satisfaction of sending by my father's telegraph

four messages across the Channel, and of receiving immediate answers,

before a vast concourse of spectators.

_Edgeworth to Dr. Darwin._

EDGEWORTHTOWN, Dec. 11, 1794.

I have been employed for two months in experiments upon a telegraph of

my own invention. I tried it partially twenty-six years ago. It differs

from the French in distinctness and expedition, as the intelligence is

not conveyed alphabetically....

I intended to detail my telegraphs (in the plural), but I find that I

have not room at present. If you think it worth while, you shall have

the whole scheme before you, which I know you will improve for me.

Suffice it, that by day, at eighteen or twenty miles' distance, I show,

by four pointers, isosceles triangles, twenty feet high, on four

imaginary circles, eight imaginary points, which correspond with the

figures

0, 1, 2, 3, 4, 5, 6, 7.

So that seven thousand different combinations are formed, of four

figures each, which refer to a dictionary of words that are referred

to,--of lists of the navy, army, militia, lords, commons, geographical

and technical terms, &c, besides an alphabet. So that everything one

wishes may be transmitted with expedition.

By night, white lights are used.

_Dr. Darwin to Mr. Edgeworth._

DERBY, March 15, 1795.

DEAR SIR,--I beg your pardon for not immediately answering your last

favor, which was owing to the great influence the evil demon has at

present in all affairs on this earth. That is, I lost your letter, and

have in vain looked over some scores of papers, and cannot find it.

Secondly, having lost your letter, I daily hoped to find it

again--without success.

The telegraph you described I dare say would answer the purpose. It

would be like a giant wielding his long arms and talking with his

fingers; and those long arms might be covered with lamps in the night.

You would place four or six such gigantic figures in a line, so that

they should spell a whole word at once; and other such figures in sight

of each other, all round the coast of Ireland; and thus fortify

yourselves, instead of Friar Bacon's wall of brass round England, with

the brazen head, which spoke, "Time is! Time was! Time is past!"

MR. EDGEWORTH'S MACHINE.

Having slightly mentioned the contrivances made use of by the ancients

for conveying intelligence swiftly, and having pointed out some of the

various important uses to which this art may be applied, I shall

endeavor to give a clear view of my attempts on this subject.

Models of the French telegraph have been so often exhibited, and the

machine itself is so well known, that it is not necessary to describe it

minutely in this place. It is sufficient to say that it consists of a

tall pole, with three movable arms, which may be seen at a considerable

distance through telescopes; these arms may be set in as many different

positions as are requisite to express all the different letters of the

alphabet. By a successive combination of letters shown in this manner,

words and sentences are formed and intelligence communicated. No doubt

can be made of the utility of this machine, as it has been applied to

the most important purposes. It is obviously liable to mistakes, from

the number of changes requisite for each word, and from the velocity

with which it must be moved to convey intelligence with any tolerable

expedition.

The name, however, which is well chosen, has become so familiar, that I

shall, with a slight alteration, adopt it for the apparatus which I am

going to describe. _Telegraph_ is a proper name for a machine which

describes at a distance. _Telelograph_, or contractedly _Tellograph_, is

a proper name for a machine that describes _words_ at a distance.

Stories of Invention, Told by Inventors and their Friends · 第 8 / 20 段