CHAPTER X.

THE EXHIBITION OF 1862.

“En administration, toutes les sottises sont mères.”—_Maximes_, par M.

G. De Levis.

“An abject worship of princes and an unaccountable appetite for

knighthood are probably unavoidable results of placing second-rate men

in prominent positions.”—_Saturday Review_, January 16, 1864.

“Whose fault is this? But tallow, toys, and sweetmeats evidently stand

high in the estimation of Her Majesty’s Commissioners.”—_The Times_,

August 13, 1862.

Mr. Gravatt suggests to King’s College the exhibition of the

Difference Engine No. 1, and offers to superintend its Transmission

and Return — Place allotted to it most unfit — Not Exhibited in 1851

— Its Loan refused to New York — Refused to the Dublin Exhibition

in 1847 — Not sent to the great French Exhibition in 1855 — Its

Exhibition in 1862 entirely due to Mr. Gravatt — Space for its

Drawings refused — The Payment of Six Shillings a Day for a competent

person to explain it refused by the Commissioners — Copy of Swedish

Difference Engine made by English Workmen not exhibited — Loan of

various other Calculating Machines offered — Anecdote of Count

Strzelecki’s — The Royal Commissioners’ elaborate taste for Children’s

Toys — A plan for making such Exhibitions profitable — Extravagance of

the Commissioners to their favourite — Contrast between his Treatment

and that of Industrious Workmen — The Inventor of the Difference

Engine publicly insulted by his Countrymen in the Exhibition of 1862.

_Circumstances connected with the Exhibition of the Difference Engine

No. 1 in the International Exhibition of 1862._

When the construction of the Difference Engine No. 1 was abandoned by

the Government in 1842, I was consulted respecting the place in which

it should be deposited. Well aware of the unrivalled perfection of its

workmanship, and {148} conscious that it formed the first great step

towards reducing the whole science of number to the absolute control

of mechanism, I wished it to be placed wherever the greatest number of

persons could see it daily.

〈ENGINE No. 1 IN KING’S COLLEGE.〉

With this view, I advised that it should be placed in one of the

much-frequented rooms of the British Museum. Another locality was,

however, assigned to it, and it was confided by the Government to the

care of King’s College, Somerset House. It remained in safe custody

within its glass case in the Museum of that body for twenty years.

It is remarkable that during that long period no person should have

studied its structure, and, by explaining its nature and use, have

acquired an amount of celebrity which the singularity of that knowledge

would undoubtedly have produced.

The College authorities did justice to their charge. They put it in the

place of honour, in the centre of their Museum, and would, no doubt

have given facilities to any of their members or to other persons who

might have wished to study it.

〈THE GOVERNMENT IGNORE IT.〉

But the system quietly pursued by the Government, of ignoring the

existence of the Difference Engine and its inventor doubtlessly

exercised its deadening influence[27] on those who were inclined, by

taste or acquirements, to take such a course. {149}

[27] An illustration fell under my notice a few days after this

paragraph was printed. A _new_ work on Geometrical Drawing,

commissioned by the Committee of Council on Education, was

published by Professor Bradley. I have not been able to find in it

a single word concerning “Mechanical Notation,” not even the very

simplest portion of that science, namely, the Art of Lettering

Drawings. It would seem impossible that any _Professor_ of so

limited a subject could be ignorant of the existence of such an

important addition to its powers.

I shall enumerate a few instances.

1. In 1850, the Government appointed a Commission to organize the

Exhibition of 1851.

The name of the author of the _Economy of Manufactures_ was not thought

worthy by the Government to be placed on that Commission.

2. In 1851, the Commissioners of the International Exhibition did

not think proper to exhibit the Difference Engine, although it was

the property of the nation. They were as insensible to the greatest

mechanical as to, what has been regarded by some, the greatest

intellectual triumph of their country.

3. When it was decided by the people of the United States to have an

Exhibition at New York, they sent a Commissioner to Europe to make

arrangement for its success. He was authorized to apply for the loan of

the Difference Engine for a few months, and was empowered to give any

pecuniary guarantee which might be required for its safe return.

That Commissioner, on his arrival, applied to me on the subject. I

explained to him the state of the case, and advised him to apply to the

Government, whose property it was. I added that, if his application was

successful, I would at my own expense put the machine in good working

order, and give him every information requisite for its safe conveyance

and use. His application was, however, unsuccessful.

4. In 1847, Mr. Dargan nobly undertook at a vast expense to make an

Exhibition in Dublin to aid in the relief of his starving countrymen.

It was thought that the exhibition of the Difference Engine would be a

great attraction. I was informed at the time that an application was

made to the Government for its loan, and that it was also unsuccessful.

{150}

5. In 1855 the great French Exhibition occurred. Previously to its

opening, our Government sent Commissioners to arrange and superintend

the English department.

These Commissioners reported that the English contribution was

remarkably deficient in what in France are termed “instruments de

précision,” a term which includes a variety of instruments for

scientific purposes. They recommended that “a Committee should be

appointed who could represent to the producers of Philosophical

Instruments how necessary it was that they should, upon an occasion of

this kind, maintain their credit in the eyes of Europe.” The Government

also applied to the Royal Society for advice; but neither did the Royal

Society advise, nor the Government propose, to exhibit the Difference

Engine.

6. The French Exhibition of 1855 was remarkable beyond all former

ones for the number and ingenuity of the machines which performed

arithmetical operations.

Pre-eminently above all others stood the Swedish Machine for

calculating and printing mathematical Tables. It is honourable to

France that its highest reward was deservedly given to the inventor

of that machine; whilst it is somewhat remarkable that the English

Commissioners appointed to report upon the French Exhibition omitted

all notice of these Calculating Machines.

〈MR. GRAVATT SUCCEEDS IN EXHIBITING IT IN 1862.〉

The appearance of the finished portion of the unfinished Difference

Engine No. 1 at the Exhibition of 1862 is entirely due to Mr. Gravatt.

That gentleman had a few years before paid great attention to the

Swedish Calculating Engine of M. Scheutz, and was the main cause of its

success in this country.

Being satisfied that it was possible to calculate and print all Tables

by machinery, Mr. Gravatt became convinced that {151} the time must

arrive when no Tables would ever be calculated or printed except by

machines. He felt that it was of great importance to accelerate the

arrival of that period, more especially as numerical Tables, which are

at present the most expensive kind of printing, would then become the

cheapest.

In furtherance of this idea, Mr. Gravatt wrote to Dr. Jelf, the

Principal of King’s College, Somerset House, to suggest that the

Difference Engine of Mr. Babbage, which had for so many years

occupied a prominent place in the museum, should be exhibited in the

International Exhibition of 1862. He at the same time offered his

assistance in the removal and reinstatement of that instrument.

The authorities of the College readily acceded to this plan. On further

inquiry, it appeared that the Difference Engine belonged to the

Government, and was only deposited with the College. It was then found

necessary to make an application to the Treasury for permission to

exhibit it, which was accordingly done by the proper authorities.

The Government granted the permission, and referred it to the Board of

Works to superintend its placement in the building.

The Board of Works sent to me a copy of the correspondence relative to

this matter, asking my opinion whether any danger might be apprehended

for the safety of the machine during its transport, and also inquiring

whether I had any other suggestion to make upon the subject.

Knowing the great strength of the work, I immediately answered that I

did not anticipate the slightest injury from its transport, and that,

under the superintendence of Mr. Gravatt, I considered it might be

removed with perfect safety. The only suggestion I ventured to offer

was, that as the Government possessed in the department of the {152}

Registrar-General a copy, made by English workmen, of the Swedish

Difference Engine, that it should be exhibited by the side of mine: and

that both the Engines should be kept constantly working with a very

slow motion.

〈SWEDISH ENGINE NOT EXHIBITED.〉

By a subsequent communication I was informed that the Swedish Machine

could not be exhibited, because it was then in constant use, computing

certain Tables relating to the values of lives. I regretted this very

much. I had intended to alter the handle of my own Engine in order to

make it moveable circularly by the same catgut which I had hoped might

have driven both. The Tables which the Swedish Machine was employed

in printing were _not_ of any pressing necessity, and their execution

could, upon such an occasion, have been postponed for a few months

without loss or inconvenience.

Besides, if the Swedish Engine had, as I proposed, been placed at work,

its superintendent might have continued his table-making with but

little delay, and the public would have been highly gratified by the

sight.

He could also have given information to the public by occasional

explanations of its principles; thus might Her Majesty’s Commissioners

have gratified thousands of her subjects who came, with intense

curiosity, prepared to be pleased and instructed, and whom they sent

away amazed and disappointed.

From the experience I had during the first week of the Exhibition, I am

convinced that if a fit place had been provided for the two Calculating

Machines, so that the public might have seen them both in constant but

slow motion, and if the superintendent had occasionally given a short

explanation of the principles on which they acted, they would have been

one of the greatest attractions within the building. {153}

On Mr. Gravatt applying to the Commissioners for space, it was stated

that the Engine must be placed amongst philosophical instruments, Class

XIII.

〈ENGLISH ENGINE POKED INTO A HOLE.〉

The only place offered for its reception was a small hole, 4 feet 4

inches in front by 5 feet deep. On one side of this was the _only_

passage to the office of the superintendent of the class. The opposite

side was occupied by a glass case in which I placed specimens of the

separate parts of the unfinished engine. These, although executed by

English workmen above thirty years ago, were yet, in the opinion of the

most eminent engineers, unsurpassed by any work the building of 1862

contained. The back of this recess was closed in and dark, and only

allowed a space on the wall of about five feet by four, on which to

place the _whole_ of the drawings and illustrations of the Difference

Engine. Close above the top of the machine was a flat roof, which

deprived the drawings and the work itself of much light.

The public at first flocked to it: but it was so placed that only three

persons could conveniently see it at the same time. When Mr. Gravatt

kindly explained and set it in motion, he was continually interrupted

by the necessity of moving away in order to allow access to the

numerous persons whose business called them to the superintendent’s

office. At a very early period various representations were made to the

Commissioners by the Jury, the superintendent, and very strongly by the

press, of the necessity of having some qualified person to explain the

machine to the public. I was continually informed by the attendants

that hundreds of persons had, during my absence asked, when they could

get an opportunity of seeing the machine in motion.

Admiring the earnestness of purpose and the sagacity with which Mr.

Gravatt had steadily followed out the convictions of {154} his own

mind relative to the abolition of all tables except those made and

stereotyped by machinery, I offered all the assistance in my power to

accelerate the accomplishment of his task.

I lent him for exhibition numerous specimens of the unfinished

portions of the Difference Engine No. 1. These I had purchased on the

determination of the Government to abandon its construction in 1842.

I proposed also to lend him the Mechanical Notations of the Difference

Engine, which had been made at my own expense, and were finished by

myself and my eldest son, Mr. B. Herschel Babbage.

I had had several applications from foreigners[28] for some account

of my system of Mechanical Notation, and great desire was frequently

expressed to see the illustrations of the method itself, and of its

various applications.

[28] One object of the mission of Professor Bolzani was, to take

back with him to Russia such an account of the Mechanical Notation

as might facilitate its teaching in the Russian Universities. I

regret that it was entirely out of my power to assist him.

These, however, were so extensive that it was impossible, without very

great inconvenience, to exhibit them even in my own house.

〈THE LOAN OF OTHER CALCULATING MACHINES OFFERED.〉

I therefore wrote to Mr. Gravatt to offer him the loan of the following

property for the Exhibition:—

1. A small Calculating Machine of the simplest order for adding

together any number of separate sums of money, provided the total was

under 100,000 _l._, by Sir Samuel Morland. 1666.

2. A very complete and well-executed Machine for answering all

questions in plane trigonometry, by Sir Samuel Morland. 1663. {155}

3. An original set of Napier’s bones.

4. A small Arithmetical Machine, by Viscount Mahon, afterwards Earl

Stanhope. Without date.

5. A larger Machine, to add, subtract, multiply, and divide, by

Viscount Mahon. 1775.

6. Another similar Machine, of a somewhat different construction, for

the same operations, by Viscount Mahon. 1777.

7. A small Difference Engine, made in London, in consequence of its

author having read Dr. Lardner’s article in the “Edinburgh Review” of

July, 1834, No. CXX.

_List of Mechanical Notations proposed to be Lent for the Exhibition._

1. All the drawings explaining the principles of the Mechanical

Notation.

2. The complete Mechanical Notations of the Swedish Calculating Engine

of M. Scheutz.

These latter drawings had been made and used by my youngest son, Major

Henry P. Babbage, now resident in India, in explaining the principles

of the Mechanical Notation at the meeting of the British Association

at Glasgow, and afterwards in London, at a meeting of the Institution

of Civil Engineers.[29]

[29] See Proceedings of British Association at Glasgow, 1855, p. 203;

also Minutes of Proceedings of the Institution of Civil Engineers, vol.

xv., 1856.

3. The Mechanical Notations of the Difference Engine No. 1. {156}

These had been made at my own expense, and were finished by myself

and my eldest son, Mr. B. Herschel Babbage, now resident in South

Australia.

4. A complete set of the drawings of the Difference Engine No. 2, for

calculating and printing tables, with seven orders of differences, and

thirty places of figures. Finished in 1849.

5. A complete set of the Notations necessary for the explanation and

demonstration of Difference Engine No. 2, finished in 1849.

These drawings and notations would have required for their exhibition

about seven or eight hundred square feet of wall. My letter to Mr.

Gravatt was forwarded to the Commissioners with his own application

for space to exhibit them. The Commissioners declined this offer; yet

during the first six weeks of the Exhibition there was at a short

distance from the Difference Engine an empty space of wall large enough

for the greater part of these instructive diagrams. This portion of

wall was afterwards filled up by a vast oil-cloth. Other large portions

of wall, to the amount of thousands of square feet, were given up to

other oil-cloths, and to numberless carpets. It is evident the Royal

Commissioners were much better qualified to judge of furniture for the

feet than of furniture for the head.

I was myself frequently asked why I did not employ a person to explain

the Difference Engine. In reply to some of my friends, I inquired

whether, when they purchased a carriage, they expected the builder to

pay the wages of their coachman.

〈FOREIGN VISITORS PUZZLED.〉

But my greatest difficulty was with foreigners; no explanation I could

devise, and I tried many, appeared at all {157} to satisfy their

minds. The thing seemed to them entirely incomprehensible.

That the nation possessing the greatest military and commercial marine

in the world—the nation which had spent so much in endeavouring to

render perfect the means of finding the longitude—which had recently

caused to be computed and published at considerable expense an entirely

new set of lunar Tables should not have availed itself _at any cost_

of mechanical means of computing and stereotyping such Tables, seemed

entirely beyond their comprehension.

At last they asked me whether the Commissioners were _bêtes_. I

assured them that the only _one_ with whom I was personally acquainted

certainly was not.

When hard pressed by difficult questions, I thought it my duty as an

Englishman to save my country’s character, even at the expense of my

own. So on one occasion I suggested to my unsatisfied friends that

Commissioners were usually selected from the highest class of society,

and that possibly four out of five had never heard of my name.

But here again my generous efforts to save the character of my country

and its Commissioners entirely failed. Several of my foreign friends

had known me in their own homes, and had seen the estimation in which I

was held by their own countrymen and by their own sovereign. These were

still more astonished.

〈CHINESE INQUIRE ABOUT IT.〉

On another occasion an anecdote was quoted against me to prove that my

name was well known even in China. It may, perhaps, amuse the reader.

A short time after the arrival of Count Strzelecki in England, I had

the pleasure of meeting him at the table of a common friend. Many

inquiries were made relative to his residence in China. Much interest

was expressed by several of the party to learn on {158} what subject

the Chinese were most anxious to have information. Count Strzelecki

told them that the subject of most frequent inquiry was Babbage’s

Calculating Machine. On being further asked as to the nature of the

inquiries, he said they were most anxious to know whether it would

go into the pocket. Our host now introduced me to Count Strzelecki,

opposite to whom I was then sitting. After expressing my pleasure at

the introduction, I told the Count that he might safely assure his

friends in the Celestial Empire that it was in every sense of the word

an _out-of-pocket_ machine.

At last the Commissioners were moved, not to supply the deficiency

themselves, but to address the Government, to whom the Difference

Engine belonged, to send somebody to explain it. I received a

communication from the Board of Works, inquiring whether I could make

any suggestions for getting over this difficulty. I immediately made

inquiries, and found a person who formerly had been my amanuensis, and

had, under my direction, worked out many most intricate problems. He

possessed very considerable knowledge of mathematics, and was willing,

for the moderate remuneration of six shillings a day, to be present

daily during nine hours to explain the Difference Engine.

I immediately sent this information to the Board of Works, with the

name and address of the person I recommended. This, I have little

doubt, was directly communicated to the Commissioners; but they did not

avail themselves of his services.

〈COMMISSIONERS INEXPLICABLE.〉

It is difficult, upon any principle, to explain the conduct of the

Royal Commissioners of the Exhibition of 1862. They were appointed by

the Government, yet when the Government itself became an exhibitor,

and sent for exhibition a {159} Difference Engine, the property of

the nation, these Commissioners placed it in a _small hole_ in a _dark

corner_, where it could, with some difficulty, be seen by six people at

the same time.

No remonstrance was of the slightest avail; it was “Hobson’s choice,”

that or none. It was represented that all other space was occupied.

A trophy of children’s toys, whose merits, it is true, the

Commissioners were somewhat more competent to appreciate, filled

one of the most prominent positions in the building. On the other

hand, a trophy of the workmanship of English engineers, executed by

_machine tools_ thirty years before, and admitted by the best judges

to be unsurpassed by any rival, was placed in a position not very

inappropriate for the authorities themselves who condemned it to that

locality.

But no hired aristocratic[30] agent was employed to excite the

slumbering perceptions of the Commissioners, who might have secured a

favourable position for the Difference Engine, by practising on their

good nature, or by imposing upon their imbecility.

[30] See “The Times,” 19 Jan., 1863, and elsewhere.

It has been urged, in extenuation of the conduct of these

Commissioners, that their duty as guardians of the funds intrusted

to them, and of the interests of the Guarantors, compelled them to

practise a rigid economy.

Rigid economy is to be respected only when it is under the control of

judgment, not of favouritism. If the machinery for making arithmetical

calculations which was placed at the disposal of the Commissioners

had been properly arranged, it might have been made at once a source

of high gratification to the public and even of _profit_ to the

Exhibition. {160}

〈A COURT FOR CALCULATING MACHINES.〉

Such a group of Calculating Machines might have been placed by

themselves in a small court capable of holding a limited number

of persons. Round the walls of this court might have been hung

the drawings I had offered to lend, containing the whole of those

necessary for the Difference Engine No. 2, as well as a large number

of illustrations for the explanation of the Mechanical Notation. The

Swedish Difference Engine and my own might have been slowly making

calculations during the whole day.

This court should have been open to the public generally, except at

two or three periods of half an hour each, during which it should have

been accessible only to those who had previously secured tickets at a

shilling apiece.

During each half hour the person whom I had recommended to the

Commissioners might have given a short popular explanation of the

subject.

This attraction might have been still further increased, and additional

profit made, if a single sheet of paper had been printed containing

a woodcut of the Swedish Machine, an impression from a page of the

Tables computed and stereotyped by it at Somerset House, and also an

impression from a stereotype plate of the Difference Engine exhibited

by the Government.

A plate of the Swedish Machine is in existence in London. I am

confident that, for such a purpose, I could have procured the loan of

it for the Commissioners, and I would willingly have supplied them

with the stereotype plate from which the frontispage of the present

volume was printed, together with from ten to twenty lines of necessary

explanation.

These illustrations of machinery used for computing and printing Tables

might have been put up into packets of dozens and half dozens, and

also have been sold in single {161} sheets at the rate of one penny

each copy. There can be no doubt the sale of them would have been

very considerable. As it was, I found the woodcut representing the

Difference Engine No. 1 in great request, and during the exhibition I

had numberless applications for it; having given away my whole stock of

about 800 copies.

〈AN ASSISTANT EXPLAINING.〉

The calculating court might have held comfortably from sixty to eighty

seats. Each lecture would have produced say 3 _l._ This being repeated

three times each day, together with the sale of the woodcuts, would

have produced about 10 _l._ per day, out of which the Commissioners

would have had six shillings per day to pay the assistant who gave the

required explanations.

If the dignity of the Commissioners would not permit them to make money

by such means, they might have announced that the proceeds of the

tickets would be given to the distressed population of the Manchester

district, and there would then have been crowds of visitors.

But the rigid economy of the Commissioners, who refused to expend six

shillings a day for an attendant, although it would most probably have

produced a return of several hundred pounds, was entirely laid aside

when their patronage was to be extended to a brother official.

Captain Fowke, an officer of engineers, whose high order of

architectural talent became afterwards so well known to the public,

and whose whole time and services were retained and paid for by the

country, was employed to make a design for the Exhibition Building.

〈THE COMMISSIONERS DO A JOB.〉

The Commissioners approved of this design, which comprised two lofty

domes, uniting in themselves the threefold inconvenience of being ugly,

useless, and expensive. They then proceeded to pay him five thousand

pounds for the job. {162} This system of awarding large sums of money

to certain favoured public officers who are already paid for their

services by liberal salaries seems to be a growing evil. At the period

of the Irish famine the under-secretary of the Treasury condescended

to accept 2,500 _l._ out of the fund raised to save a famished nation.

Some inquiries, even recently, were occasionally made whether any

similar deduction will be allowed from the liberal contributions to the

sufferers by the cotton famine.

The question was raised and the practice reprobated in the House of

Commons by men of opposite party politics. Mr. Gladstone remarked:—

“If there was one rule connected with the public service which more

than any other ought to be scrupulously observed, it was this, that the

salary of a public officer, more especially if he were of high rank,

ought to cover all the services he might be called upon to render. Any

departure from this rule must be dangerous.” Hansard, vol. 101, p. 138,

1848. Supply, 14 Aug. 1848. See also “The Exposition of 1851,” 8vo., p.

217.

〈THE ADMIRALTY REFUSE.〉

The following paragraph appeared in “The Times”[31] a short time since,

under the head Naval Intelligence:—

“A reply has been received to the memorial transmitted to the Admiralty

some few days since from the inspectors employed on the iron frigate

‘Achilles,’ building at Chatham dockyard, requesting that they may

be placed on the same footing as regards increased pay as the junior

officers and mechanics working on the iron frigate for the additional

number of hours they are employed in the dockyard. The Lords of the

Admiralty intimate that they cannot accede to the wishes of the

memorialists, who are reminded that, as {163} salaried officers of

the establishment, the whole of their time is at the disposal of the

Admiralty. This decision has caused considerable dissatisfaction.”

[31] About the 20th of May, 1863.

It appears that the Admiralty wisely adopted the principle enunciated

by Mr. Gladstone.

It may, however, not unreasonably have caused dissatisfaction to those

who had no interest to back them on finding that such large sums are

pocketed by those who are blessed with influential friends in high

quarters.

If the Commissioners had really wished to have obtained a suitable

building at a fair price their course was simple and obvious. They need

only have stated the nature and amount of accommodation required, and

then have selected half a dozen of the most eminent firms amongst our

great contractors, who would each have given them an estimate of the

plans they respectively suggested.

The Commissioners might have made it one of the conditions that they

should not be absolutely bound to give the contract to the author of

the plan accepted. But in case of not employing him a sum previously

stipulated should have been assigned for the use of the design.

By such means they would have had a choice of various plans, and if

those plans had, previously to the decision of the Commissioners, been

publicly exhibited for a few weeks, they might have been enlightened by

public criticism. Such a course would have prevented the gigantic job

they afterwards perpetrated. It could therefore find no support from

the Commissioners.

The present Commissioners, however, are fit successors to those

who in 1851 ignored the existence of the author of the “Economy of

Manufactures” and his inventions. They seem to have been deluded into

the belief that they possessed {164} the strength, as well as the

desire, quietly to strangle the Difference Engine.

It would be idle to break such butterflies upon its matchless wheels,

or to give permanence to such names by reflecting them from its

diamond-graven plates.[32] Though the steam-hammer can crack the

coating without injuring the kernel of the filbert it drops upon—the

admirable precision of its gigantic power could never be demonstrated

by exhausting its energy upon an empty nut-shell.

[32] For the purpose of testing the steadiness and truth of the

tools employed in forming the gun-metal plates, I had some dozen

of them turned with a diamond point. The perfect equality of its

cut caused the reflected light to be resolved into those beautiful

images pointed out by Frauenhofer, and also so much admired in

the celebrated gold buttons produced by the late Mr. Barton, the

Comptroller of the Mint.

Peace, then, to their memory, aptly enshrined in unknown characters

within the penetralia of the temple of oblivion.

〈CONSOLATION FOR THE COMMISSIONERS.〉

These celebrities may there at last console themselves in the enjoyment

of one enviable privilege denied to them during their earthly

career—exemption from the daily consciousness of being “_found out_.”

It is, however, not quite impossible, although deciphering is a

brilliant art, that one or other of them may have heard of the dread

power of the decipherer. Having myself had some slight acquaintance

with that fascinating pursuit, it gives me real pleasure to relieve

them from this very natural fear by assuring them that not even the

most juvenile decipherer could be so stupid as to apply himself to the

interpretation of—characters known to be meaningless.

Yet there is one name amongst, but not of them—a fellow-worshipper

with myself at far other fanes, whose hands, like mine, have wielded

the hammer, and whose pen, like mine, has endeavoured to communicate

faithfully to his fellow-men {165} the measure of those truths he

has himself laboriously extracted from the material world. With such

endowments, it is impossible that _he_ could have had any cognizance of

this part of the proceedings of his colleagues.[33]

[33] I have since learnt, with real satisfaction, that my friend,

Mr. Fairbairn, was _not_ a member of that incompetent Commission.

〈MR. GRAVATT EXPLAINS THE ENGINE.〉

At the commencement of the Exhibition, Mr. Gravatt was constantly

present, and was so kind as to explain to many anxious inquirers the

nature and uses of the Difference Engine. This, however, interfered so

much with his professional engagements as a Civil Engineer, that it

would have been unreasonable to have expected its continuance. In fact,

as not above half a dozen spectators could see the machine at once, it

was a great sacrifice of valuable time for a very small result.

During the early part of my own examination of the Exhibition I had

many opportunities of conversing with experienced workmen, well

qualified to appreciate the workmanship of the Difference Engine; these

I frequently accompanied to its narrow cell, and pointed out to them

its use, as well as the means by which its various parts had received

their destined form.

Occasionally also I explained it to some few of my personal friends.

When Mr. Gravatt or myself were thus engaged, a considerable crowd was

often collected, who were anxious to hear about, although they could

not see, the Engine itself.

Upon one of these occasions I was insulted by impertinent questions

conveyed in a loud voice from a person at a distance in the crowd.

My taste for music, and especially for organs, was questioned. I was

charitable enough to suppose that this was an exceptional case; but

in less than a week another instance {166} occurred. After this

experience, of course, I seldom went near the Difference Engine. Mr.

Gravatt who had generously sacrificed a considerable portion of his

valuable time for the information and instruction of the public was now

imperatively called away by professional engagements, and the public

had no information whatever upon a subject on which it was really very

anxious to be instructed.

〈MR. WILMOT BUXTON EXPLAINS THE DIFFERENCE ENGINE.〉

Fortunately, however, the Exhibition took place during the long

vacation; and a friend of mine, Mr. Wilmot Buxton, of the Chancery Bar,

very frequently accompanied me in my visits. Possessing a profound

knowledge of the mathematical principles embodied in the mechanism, I

had frequently pointed out to him its nature and relations. These I

soon found he so well apprehended that I felt justified in intrusting

him with one of my keys of the machine, in order that he might have

access to it without the necessity of my presence.

Whenever he opened it for his own satisfaction or for the instruction

of his friends, he was speedily surrounded by a far larger portion of

the public than could possibly see it, but who were still attracted by

his lucid oral explanation.

It was fortunate for many of the visitors to the Exhibition that this

occurred, for the demands on his time, when present, were incessant,

and hundreds thus acquired from his explanations a popular view of the

subject.

After the close of the Exhibition, Mr. Gravatt and myself attended to

prepare the Difference Engine for its return to the Museum of King’s

College. To our great astonishment, we found that it had already been

removed to the Museum at South Kensington. Not only the Difference

Engine itself, but also the illustrations and all the unfinished

portions of exquisite workmanship which I had lent to the Exhibition

for its explanation, were gone. {167}

On Mr. Gravatt applying to the Board of Works, it was stated that the

Difference Engine itself had been placed in the Kensington Museum

because the authorities of King’s College had declined receiving it,

and immediate instructions were of course given for the restoration of

my own property.

{168}

Passages from the Life of a Philosopher · 第 10 / 25 章