'"And," continued Sir John, "why cannot the illuminating microscope, say

the hydro-oxygen, be applied to render distinct, and, if necessary, even

to magnify, the focal object?" Sir David sprung from his chair' [and

well he might, though not] 'in an ecstasy of conviction, and, leaping

half-way to the ceiling, exclaimed, "Thou art the man!" Each philosopher

anticipated the other in presenting the prompt illustration that if the

rays of the hydro-oxygen microscope, passed through a drop of water

containing the larvae of a gnat and other objects invisible to the naked

eye, rendered them not only keenly but firmly magnified to dimensions of

many feet; so could the same artificial light, passed through the

faintest focal object of a telescope, both distinctify (to coin a new

word for an extraordinary occasion) and magnify its feeblest component

members. The only apparent desideratum was a recipient for the focal

image which should transfer it, without refranging it, to the surface on

which it was to be viewed under the revivifying light of the microscopic

reflectors.'

Singularly enough, the idea here mentioned does not appear to many so

absurd as it is in reality. It is known that the image formed by the

large lens of an ordinary telescope or the large mirror of a reflecting

telescope is a real image; not a merely virtual image like that which is

seen in a looking-glass. It can be received on a sheet of paper or other

white surface just as the image of surrounding objects can be thrown

upon the white table of the camera obscura. It is this real image, in

fact, which we look at in using a telescope of any sort, the portion of

such a telescope nearest to the eye being in reality a microscope for

viewing the image formed by the great lens or mirror, as the case may

be. And it does not seem to some altogether absurd to speak of

illuminating this image by transfused light, or of casting by means of

an illuminating microscope a vastly enlarged picture of this image upon

a screen. But of course the image being simply formed by the passage of

rays (which originally came from the object whose image they form)

through a certain small space, to send _other_ rays (coming from some

other luminous object) through the same small space, is not to improve,

but, so far as any effect is produced at all, to impair, the

distinctness of the image. In fact, if these illuminating rays reached

the eye, they would seriously impair the distinctness of the image.

Their effect may be compared exactly with the effect of rays of light

cast upon the image in a camera obscura; and, to see what the effect of

such rays would be, we need only consider why it is that the camera _is_

made 'obscura,' or dark. The effect of the transfusion of light through

a telescopic image may be easily tried by any one who cares to make the

experiment. He has only to do away with the tube of his telescope

(substituting two or three straight rods to hold the glass in its

place), and then in the blaze of a strong sun to direct the telescope on

some object lying nearly towards the sun. Or if he prefer artificial

light for the experiment, then at night let him direct the telescope so

prepared upon the moon, while a strong electric light is directed upon

the place where the focal image is formed (close in front of the eye).

The experiment will not suggest very sanguine hopes of good result from

the transfusion of artificial light. Yet, to my own knowledge, not a few

who were perfectly well aware that the lunar hoax was not based on

facts, have gravely reasoned that the principle suggested might be

sound, and, in fact, that they could see no reason why astronomers

should not try it, even though it had been first suggested as a joke.

To return, however, to the narrative. 'The co-operative philosophers,

having hit upon their method, determined to test it practically. They

decided that a medium of the purest plate-glass (which it is said they

obtained, by consent, be it observed, from the shop-window of M.

Desanges, the jeweller to his ex-majesty Charles X., in High Street) was

the most eligible they could discover. It answered perfectly with a

telescope which magnified a hundred times, and a microscope of about

thrice that power.' Thus fortified by experiment, and 'fully sanctioned

by the high optical authority of Sir David Brewster, Sir John laid his

plan before the Royal Society, and particularly directed to it the

attention of his Royal Highness the Duke of Sussex, the ever munificent

patron of science and the arts. It was immediately and enthusiastically

approved by the committee chosen to investigate it, and the chairman,

who was the Royal President' (this continual reference to royalty is

manifestly intended to give a British tone to the narrative),

'subscribed his name for a contribution of L10,000, with a promise that

he would zealously submit the proposed instrument as a fit object for

the patronage of the privy purse. He did so without delay; and his

Majesty, on being informed that the estimated expense was L70,000,

naively enquired if the costly instrument would conduce to any

improvement in _navigation_. On being informed that it undoubtly would,

the sailor king promised a _carte blanche_ for any amount which might be

required.'

All this is very clever. The 'sailor king' comes in as effectively to

give _vraisemblance_ to the narrative as 'Crabtree's little bronze

Shakspeare that stood over the fireplace,' and the 'postman just come to

the door with a double letter from Northamptonshire.'

Then comes a description of the construction of the object-glass,

twenty-four feet in diameter, 'just six times the size of the elder

Herschel's;' who, by the way, never made a telescope with an

object-glass. The account of Sir John Herschel's journey from England,

and even some details of the construction of the observatory, were based

on facts, indeed, so many persons in America as well as in England were

acquainted with some of these circumstances, that it was essential to

follow the facts as closely as possible. Of course, also, some

explanation had to be given of the circumstance that nothing had before

been heard respecting the gigantic instrument taken out by Sir John

Herschel. 'Whether,' says the story, 'the British Government were

sceptical concerning the promised splendour of the discoveries, or

wished them to be scrupulously veiled until they had accumulated a

full-orbed glory for the nation and reign in which they originated, is a

question which we can only conjecturally solve. But certain it is that

the astronomer's royal patrons enjoined a masonic taciturnity upon him

and his friends until he should have officially communicated the results

of his great experiment.'

It was not till the night of January 10, 1835, that the mighty telescope

was at length directed towards our satellite. The part of the moon

selected was on the eastern part of her disc. 'The whole immense power

of the telescope was applied, and to its focal image about one half of

the power of the microscope. On removing the screen of the latter, the

field of view was covered throughout its entire area with a beautifully

distinct and even vivid representation of _basaltic rock_. Its colour

was a greenish brown; and the width of the columns, as defined by their

interstices on the canvas, was invariably twenty-eight inches. No

fracture whatever appeared in the mass first presented; but in a few

seconds a shelving pile appeared, of five or six columns' width, which

showed their figure to be hexagonal, and their articulations similar to

those of the basaltic formation at Staffa. This precipitous cliff was

profusely covered with a dark red flower, precisely similar, says Dr.

Grant, to the Papaver Rhoeus, or Rose Poppy, of our sublunary

cornfields; and this was the first organic production of nature in a

foreign world ever revealed to the eyes of men.'

It would be wearisome to go through the whole series of observations

thus fabled, and only a few of the more striking features need be

indicated. The discoveries are carefully graduated in interest. Thus we

have seen how, after recognising basaltic formations, the observers

discovered flowers: they next see a lunar forest, whose 'trees were of

one unvaried kind, and unlike any on earth except the largest kind of

yews in the English churchyards.' (There is an American ring in this

sentence, by the way, as there is in one, a few lines farther on, where

the narrator having stated that by mistake the observers had the Sea of

Clouds instead of a more easterly spot in the field of view, proceeds to

say: 'However, the moon was a free country, and we not as yet attached

to any particular province.') Next a lunar ocean is described, 'the

water nearly as blue as that of the deep sea, and breaking in large

white billows upon the strand, while the action of very high tides was

quite manifest upon the face of the cliffs for more than a hundred

miles.' After a description of several valleys, hills, mountains and

forests, we come to the discovery of animal life. An oval valley

surrounded by hills, red as the purest vermilion, is selected as the

scene. 'Small collections of trees, of every imaginable kind, were

scattered about the whole of this luxuriant area; and here our

magnifiers blessed our panting hopes with specimens of conscious

existence. In the shade of the woods we beheld brown quadrupeds having

all the external characteristics of the bison, but more diminutive than

any species of the bos genus in our natural history.' Then herds of

agile creatures like antelopes are described, 'abounding on the

acclivitous glades of the woods.' In the contemplation of these

sprightly animals the narrator becomes quite lively. 'This beautiful

creature,' says he, 'afforded us the most exquisite amusement. The

mimicry of its movements upon our white painted canvas was as faithful

and luminous as that of animals within a few yards of the camera

obscura. Frequently, when attempting to put our fingers upon its beard,

it would suddenly bound away as if conscious of our earthly

impertinence; but then others would appear, whom we could not prevent

nibbling the herbage, say or do to them what we would.'

A strange amphibious creature, of a spherical form, rolling with great

velocity along a pebbly beach, is the next object of interest, but is

presently lost sight of in a strong current setting off from the angle

of an island. After this there are three or four pages descriptive of

various lunar scenes and animals, the latter showing a tendency,

singular considering the circumstances, though very convenient for the

narrator, to become higher and higher in type as the discoveries

proceed, until an animal somewhat of the nature of the missing link is

discovered. It is found in the Endymion (a circular walled plain) in

company with a small kind of reindeer, the elk, the moose, and the

horned bear, and is described as the biped beaver. It 'resembles the

beaver of the earth in every other respect than in its destitution of a

tail, and its invariable habit of walking upon only two feet. It carries

its young in its arms like a human being, and moves with an easy gliding

motion. Its huts are constructed better and higher than those of many

tribes of human savages, and, from the appearance of smoke in nearly all

of them, there is no doubt of its being acquainted with the use of fire.

Still, its head and body differ only in the points stated from that of

the beaver; and it was never seen except on the borders of lakes and

rivers, in which it has been observed to immerse for a period of several

seconds.'

The next step towards the climax brings us to domestic animals, 'good

large sheep, which would not have disgraced the farms of Leicestershire

or the shambles of Leadenhall Market; we fairly laughed at the

recognition of so familiar an acquaintance in so distant a land.

Presently they appeared in great numbers, and, on reducing the lenses,

we found them in flocks over a great part of the valley. I need not say

how desirous we were of finding shepherds to these flocks, and even a

man with blue apron and rolled-up sleeves would have been a welcome

sight to us, if not to the sheep; but they fed in peace, lords of their

own pastures, without either protector or destroyer in human shape.'

In the meantime, discussion had arisen as to the lunar locality where

men, or creatures resembling them, would most likely be found. Herschel

had a theory on the subject--viz., that just where the balancing or

libratory swing of the moon brings into view the greatest extent beyond

the eastern or western parts of that hemisphere which is turned

earthwards in the moon's mean or average position, lunar inhabitants

would probably be found, and nowhere else. This, by the way (speaking

seriously), is a rather curious anticipation of a view long subsequently

advanced by Hansen, and for a time adopted by Sir J. Herschel, that

possibly the remote hemisphere of the moon may be a fit abode for living

creatures, the oceans and atmosphere which are wanting on the nearer

hemisphere having been (on this hypothesis) drawn over to the remoter

because of a displacement of the moon's centre of gravity. I ventured in

one of my first books on astronomy to indicate objections to this

theory, the force of which Sir J. Herschel admitted in a letter

addressed to me on the subject.

Taking, then, an opportunity when the moon had just swung to the extreme

limit of her balancing, or, to use technical terms, when she had

attained her maximum libration in longitude, the observers approached

the level opening to Lake Langrenus, as the narrator calls this fine

walled plain, which, by the way, is fully thirty degrees of lunar

longitude within the average western limit of the moon's visible

hemisphere. 'Here the valley narrows to a mile in width, and displays

scenery on both sides picturesque and romantic beyond the powers of a

prose description. Imagination, borne on the wings of poetry, could

alone gather similes to portray the wild sublimity of this landscape,

where dark behemoth crags stood over the brows of lofty precipices, as

if a rampart in the sky; and forests seemed suspended in mid-air. On the

eastern side there was one soaring crag, crested with trees, which hung

over in a curve like three-fourths of a Gothic arch, and being of a rich

crimson colour, its effect was most strange upon minds unaccustomed to

the association of such grandeur with such beauty. But, whilst gazing

upon them in a perspective of about half a mile, we were thrilled with

astonishment to perceive four successive flocks of large winged

creatures, wholly unlike any kind of birds, descend with a slow even

motion from the cliffs on the western side and alight upon the plain.

They were first noticed by Dr. Herschel, who exclaimed: "Now, gentlemen,

my theories against your proofs, which you have often found a pretty

even bet, we have here something worth looking at. I was confident that

if ever we found beings in human shape it would be in this longitude,

and that they would be provided by their Creator with some extraordinary

powers of locomotion." ... We counted three parties of these creatures,

of twelve, nine, and fifteen in each, walking erect towards a small wood

near the base of the eastern precipices. Certainly they _were_ like

human beings, for their wings had now disappeared, and their attitude in

walking was both erect and dignified.... They averaged four feet in

height, were covered, except on the face, with short and glossy

copper-coloured hair, lying snugly upon their backs, from the top of the

shoulders to the calves of the legs. The face, which was of a yellowish

flesh colour, was a slight improvement upon that of the large orang

outang, being more open and intelligent in its expression, and having a

much greater expansion of forehead. The mouth, however, was very

prominent, though somewhat relieved by a thick beard upon the lower jaw,

and by lips far more human than those of any species of the simia genus.

In general symmetry of body and limbs they were infinitely superior to

the orang outang; so much so, that, but for their long wings, Lieutenant

Drummond said they would look as well on a parade ground as some of the

old Cockney militia.... These creatures were evidently engaged in

conversation; their gesticulation, more particularly the varied action

of their hands and arms, appeared impassioned and emphatic. We hence

inferred that they were rational beings, and, although not perhaps of so

high an order as others which we discovered the next month on the shores

of the Bay of Rainbows, that they were capable of producing works of art

and contrivance.... They possessed wings of great expansion, similar in

construction to those of the bat, being a semi-transparent membrane

united in curvilinear divisions by means of straight radii, united at

the back by the dorsal integuments. But what astonished us very much

was the circumstance of this membrane being continued from the shoulders

to the legs, united all the way down, though gradually decreasing in

width' (very much as Fuseli depicted the wings of his Satanic Majesty,

though H.S.M. would seem to have the advantage of the lunar Bat-men in

not being influenced by gravity[48]). 'The wings seemed completely under

the command of volition, for those of the creatures whom we saw bathing

in the water spread them instantly to their full width, waved them as

ducks do theirs to shake off the water, and then as instantly closed

them again in a compact form. Our further observation of the habits of

these creatures, who were of both sexes, led to results so very

remarkable, that I prefer they should be first laid before the public in

Dr. Herschel's own work, where I have reason to know they are fully and

faithfully stated, however incredulously they may be received.... We

scientifically denominated them the Vespertilio-homo or Bat-man; and

they are doubtless innocent and happy creatures, notwithstanding that

some of their amusements would but ill comport with our terrestrial

notions of decorum.' The omitted passages were suppressed in obedience

to Dr. Grant's private injunction. 'These, however, and other prohibited

passages,' were to be presently 'published by Dr. Herschel, with the

certificates of the civil and military authorities of the colony, and of

several Episcopal, Wesleyan, and other ministers, who in the month of

March last were permitted, under stipulation of temporary secrecy, to

visit the observatory, and become eye-witnesses of the wonders which

they were requested to attest. We are confident that his forthcoming

volumes will be at once the most sublime in science, and the most

intense in general interest, that ever issued from the press.'

The actual climax of the narrative, however, is not yet reached. The

inhabitants of Langrenus, though rational, do not belong to the highest

orders of intelligent Lunarians. Herschel, ever ready with theories, had

pointed out that probably the most cultivated races would be found

residing on the slopes of some active volcano, and, in particular, that

the proximity of the flaming mountain Bullialdus (about twenty degrees

south and ten east of the vast crater Tycho, the centre whence extend

those great radiations which give to the moon something of the

appearance of a peeled orange) 'must be so great a local convenience to

dwellers in this valley during the long periodical absence of solar

light, as to render it a place of popular resort for the inhabitants of

all the adjacent regions, more especially as its bulwark of hills

afforded an infallible security against any volcanic eruption that could

occur.' Our observers therefore applied their full power to explore it.

'Rich, indeed, was our reward. The very first object in this valley that

appeared upon our canvas was a magnificent work of art. It was a

temple--a fane of devotion or of science, which, when consecrated to the

Creator, is devotion of the loftiest order, for it exhibits His

attributes purely, free from the masquerade attire and blasphemous

caricature of controversial creeds, and has the seal and signature of

His own hand to sanction its aspirations. It was an equi-angular temple,

built of polished sapphire, or of some resplendent blue stone, which,

like it, displayed a myriad point of golden light twinkling and

scintillating in the sunbeams.... The roof was composed of yellow metal,

and divided into three compartments, which were not triangular planes

inclining to the centre, but subdivided, curved, and separated so as to

present a mass of violently agitated flames rising from a common source

of conflagration, and terminating in wildly waving points. This design

was too manifest and too skilfully executed to be mistaken for a single

moment. Through a few openings in these metallic flames we perceived a

large sphere of a darker kind of metal nearly of a clouded copper

colour, which they enclosed and seemingly raged around, as if

hieroglyphically consuming it.... What did the ingenious builders mean

by the globe surrounded by flames? Did they, by this, record any past

calamity of _their_ world, or predict any future one of _ours_?' (Why,

by the way, should the past theory be assigned to the moon and the

future one to our earth?) 'I by no means despair of ultimately solving

not only these but a thousand other questions which present themselves

respecting the objects in this planet; for not the millionth part of her

surface has yet been explored, and we have been more desirous of

collecting the greatest possible number of new facts than of indulging

in speculative theories, however seductive to the imagination.'

After this we have an account of the behaviour of the Vespertilio-homo

at meals. 'They seemed eminently happy, and even polite; for individuals

would select large and bright specimens of fruit, and throw them

archwise across to some friend who had extracted the nutriment from

those scattered around him.' However, the lunar men are not on the whole

particularly interesting beings according to this account. 'So far as we

could judge, they spent their happy hours in collecting various fruits

in the woods, in eating, flying, bathing, and loitering about the

summits of precipices.' One may say of them what Huxley is reported to

have said of the spirits as described by spiritualists, that no student

of science would care to waste his time inquiring about such a stupid

set of people.

Such are the more interesting and characteristic portions of a

narrative, running in the original to forty or fifty large octavo pages.

In its day the story attracted a good deal of notice, and, even when

every one had learned the trick, many were still interested in a

_brochure_ which was so cleverly conceived and had deceived so many. To

this day the lunar hoax is talked of in America, where originally it had

its chief--or, one may rather say, its only real--success as a hoax. It

reached England too late to deceive any but those who were unacquainted

with Herschel's real doings, and no editors of public journals, I

believe, gave countenance to it at all. In America, on the contrary,

many editors gave the narrative a distinguished place in their columns.

Some indeed expressed doubts, and others followed the safe course of the

'Philadelphia Inquirer,' which informed its readers that 'after an

attentive perusal of the whole story they could decide for themselves;'

adding that, 'whether true or false, the narrative is written with

consummate ability and possesses intense interest.' But others were more

credulous. According to the 'Mercantile Advertiser' the story carried

'intrinsic evidence of being an authentic document.' The 'Albany Daily

Advertiser' had read the article 'with unspeakable emotions of pleasure

and astonishment.' The 'New York Times' announced that 'the writer (Dr.

Andrew Grant) displays the most extensive and accurate knowledge of

astronomy; and the description of Sir John's recently improved

instruments, the principle on which the inestimable improvements were

founded, the account of the wonderful discoveries in the moon, etc., all

are probable and plausible, and have an air of intense verisimilitude.'

The 'New Yorker' considered the discoveries 'of astounding interest,

creating a new era in astronomy and science generally.'[49]

Myths and Marvels of Astronomy · 第 18 / 28 段