THE PRODUCTION OF FIRE.

In 1867 the Abbé Bourgeois found at Thenay, near Pont-levoy

(Loir-et-Cher), in a marly bank belonging to the most ancient part of

the middle Tertiary formation, fragments of silex which bore traces of

the action of fire. This fire had not been lighted by accidental causes,

for, says Mr. DeMortillet (_Le Prehistorique_, p. 90), the causes of

instantaneous conflagrations can be only volcanic fires, fermentations,

and lightning. "Now, in the entire region there is no trace of volcanic

action, and neither are there any traces of turfy or vegetable deposits

capable of giving rise to spontaneous inflammations--phenomena that

are always very rare and very exceptional, as are also conflagrations

started by lightning. Well, in the Thenay marls, the pieces of silex

that had undergone the action of fire were found disseminated at

different levels, and this could not have been a simple accident, but

was evidently something that had been done intentionally. There existed,

then, during the Aquitanian epoch, a being who was acquainted with fire

and knew how to produce it."

Mr. De Mortillet supposes that this being was an animal intermediate

between man and the monkey, which he calls the _anthropopithecus_.

This precursor of man made use of fire for splitting silex and

manufacturing from it instruments whose cutting edge he perfected by

means of a series of retouchings produced by slight percussions upon one

of the surfaces only.

I shall not enter in this place upon a discussion as to the existence

of an anthropopithecus or Tertiary man, whom every one does not as yet

accept, but will confine myself to giving the facts as to the use of

fire in the remotest epochs, incontestable proofs of which exist from

the time at which Quaternary man made his appearance. How this was

discovered is indicated, according to Aryan tradition, by the Vedic

hymns. The ancestors of the Aryans, these tell us, had seen the lighting

dart forth from the shock of black clouds. They had seen the spark that

fired the forests issue from the friction of dry branches agitated by

the storm. They took a branch of soft wood, _arani_, and passing a thong

around a branch of hard wood, _pramontha_, they caused it to revolve

rapidly in a cavity in the _arani_, and thus evoked the god _Agni_, whom

they nourished with libations of clarified butter, _soma_.

The _Pramontha_, became the _Prometheus_ of the Greeks, the Titan who

stole the fire, and it is from the Sanscrit _Agni_ that is derived the

Latin _Ignis_, "fire," and the Greek [Greek: Agnos], "pure," and the

_Agnus Dei_ of the Christians, who purifies all.

Orientalists generally agree that the sign which is seen under the forms

[inline illustration], [inline illustration], or [inline illustration],

on a large number of objects of Aryan origin is a sort of sacred

hieroglyphic, representing the _arani_ or _svastika_, formed of two

pieces of soft wood fixed by four pins in such a way as not to revolve

under the pressure of the Pramontha.

This process of producing fire is also found among a host of more or

less savage peoples, and especially in India, where, during the last

month of the great feast of sacrifices, the sacred fire must always be

kindled three hundred and sixty times a day with nine different kinds of

wood that are prescribed by the rite.

Fig. 1 shows the arrangement in use among the Eskimos, and Fig. 2 that

employed by the Indians of North America.

In 1828 there still existed at Essen, in Hanover, an analogous apparatus

designed to produce an alarm fire. This was a large, horizontal, round

wooden bar whose extremities pivoted in two apertures formed in vertical

posts, and which was provided with a cord that was wound around it

several times. Several persons, by pulling on the ends of this cord,

caused the bar to revolve alternately in one direction and the other,

and the heat developed by the friction lighted some tow that had

previously been inserted in one of the apertures in the post.

[Illustration: FIG. 1.--ESKIMO PRODUCING FIRE BY FRICTION.]

It is certain that the alternate motion must have been produced directly

by hand before being effected by cords. This simpler process is still in

use in Tasmania, Australia, Polynesia, Kamtschatka, Thibet, Mexico, and

among the Guanches of the Canary Isles, who are supposed to be the last

representatives of the inhabitants of Atlantis, which sank under the

waters at the close of the Quaternary epoch.

Chamisso, who accompanied Kotzebue in his voyage, describes it as

follows: "In the Caroline Islands, they rest a vertical piece of

roundish wood, terminating in a point, and about a foot and a half in

length and one inch in diameter, upon a second one fixed in the ground,

and then give it a rotary motion by acting with the palms of the

hands. This motion, which is at first slow and measured, is at length

accelerated, while at the same time the pressure becomes stronger,

whereupon the dust from the wood which has formed by friction and

accumulated around the point of the movable piece begins to carbonize.

This dust, which, after a fashion, constitutes a match, soon bursts into

flame. The women of Eap are wonderfully dexterous in their use of this

process."

[Illustration: FIG. 2.--PROCESS EMPLOYED IN NORTH AMERICA FOR PRODUCING

FIRE.]

Fig. 3 shows another manner of obtaining fire by rotation which is

employed by the Guachos, a half savage, pastoral people who inhabit the

pampas of South America. Longitudinal friction must have preceded that

obtained by rotation. It is still in use in most of the islands of

Oceanica (Fig. 4), and especially in Tahiti and in the Sandwich Islands.

In these latter, says again Chamisso, upon the fixed piece of wood they

place another piece of the same kind, about the length of the palm, and

press it obliquely at an angle of about 30 degrees. The extremity that

touches the fixed piece is blunt, and the other extremity is held with

the two hands, the two thumbs downward, in order to allow of a surer

pressure. The piece is given an alternating motion, and in such a way

that it shall always remain in the same plane inclined at an angle of 30

degrees, and form, through friction, a small groove from six to eight

centimeters in length. When the dust thus produced begins to carbonize,

the pressure and velocity are increased. Wood of a homogeneous texture,

neither too hard nor too soft, is the best for the purpose.

The Malays operate as follows: A dry bamboo rod, about a foot in length,

is split longitudinally, and the pith which lines the inside is scraped

off, pressed, and made into a small ball which is afterward placed in

the center of the cavity of one of the halves of the tube. This latter

half is then fixed to the ground in such a way that the cavity and ball

face downward. The operator next fashions the other half of the tube

into a straight cutting instrument like a knife-blade, which he applies

transversely to the fixed half and gives an alternating motion so as to

produce a sort of sawing. After a certain length of time, a groove, and

finally a hole, is produced. The cutting edge of the instrument is then

so hot that it sets on fire the ball with which it has come in contact.

[Illustration: FIG. 3.--GAUCHO OBTAINING FIRE.]

Some peoples, the Fuegians especially, procure fire by striking together

two flints. In the Aleutian Islands these latter, having been previously

covered with sulphur, are struck against each other over a small saucer

of dry moss dusted with sulphur. The Eskimos employ for this purpose

pieces of quartz and iron pyrites.

In the Sandwich Islands recourse is had to a process that necessitates

much skill. There is arranged in a large dry leaf, rolled into the

shape of a funnel, a certain number of flints along with some easily

combustible twigs. On attaching the leaf to the end of a rod, and

revolving the latter rapidly, it is said that fire is produced.

Processes that are based upon the clashing of two flint stones must be

much more inconvenient of application than we would be led to suppose.

We are, in fact, accustomed to see the flint and steel used, but here

the spark is a bit of iron raised to red heat through a mechanical

action that has violently detached it from the mass under the form of

a small sliver. In the case of two flint stones, the light that

is perceived is of an entirely different nature, for it is a

phosphorescence which is produced, even by a very slight friction, not

only between two pieces of silex, but also between two pieces of quartz,

porcelain, or sugar; and that the heat developed is but slight is proved

by the fact that the phenomenon may occur under water. Of course,

fragments of stones may be raised to a red heat through percussion; but

this does not often occur, so for this reason the Fuegians keep up with

the greatest care the fires that they have lighted, and it is this very

peculiarity that has given their country a characteristic aspect and

caused it to be named Terra del Fuego (land of fire). When they change

their residence they always carry with them a few lighted embers which

rest in their canoes upon a bed of pebbles or ashes.

The same thing occurs, moreover, among the Australians and Tasmanians,

who employ, as we have just seen, the rotary process. There are women

among these peoples whose special mission it is to carry day and night

lighted torches or cones made of a substance that burns slowly like

punk. When, through accident, the fire happens to get extinguished in a

tribe, these people often prefer to undertake a long voyage in order to

obtain another light from a neighboring tribe rather than have recourse

to a direct production of it.

We can understand from what is still taking place in these distant

countries why the worship of fire should have existed among our

ancestors, and why sacerdotal associations, such as the Brahmins of

India, the Guebers of Persia, the Vestals of Rome, the priests of Baal

in Chaldea and Phenicia should have been specially instituted for

producing and preserving it.

Plutarch narrates (Numa, chap. ii.) that when the sacred fire happened

to go out, there was employed for relighting it a brass mirror that

had the form of a cone generated by the hypothenuse of an isosceles

rectangular triangle revolving around one of the sides of the right

angle.

[Illustration: FIG. 4.--NATIVE OF OCEANICA OBTAINING FIRE BY FRICTION.]

In a poem upon stones attributed to Orpheus, it is said that the sacred

fire was also lighted by a bit of crystal which concentrated the rays of

the sun upon the material to be inflamed. This process must have been

the one that was most usually employed before fire became common. In

fact, a plano-convex crystal lens has been found among the ruins of

Nineveh. Aristophanes, in the _Clouds_, puts on the stage a coarse

personage named Strepsiades, who points out to Socrates how he must

manage so as not to pay his debts:

"Streps.--Hast thou seen among druggists that beautiful transparent

stone that they employ for lighting a fire?

"Socr.--Thou meanest glass.

"Streps.--Yes.

"Socr.--Well! what wouldst thou do with it?

"Streps.--When the registrar shall have made out his summons against me,

I will take the glass, and, placing myself thus in the sun, will cause

his writing to melt."

As well known, writing was then traced on waxen tablets. Servius (in

_Æn_., xii., 200) affirms that men of ancient times, instead of lighting

fire upon the altar themselves, in their sacrifices, caused it to

descend from heaven. He adds, according to Pliny, Titus Livius, and

several old Latin historians, that Numa, who was initiated into all the

wisdom of Etruria, practiced this art with success, but that Tullius

Hostilius, having desired to repeat the evocation, guided only by the

books of Numa, did not accomplish all the formalities prescribed by the

rite and was struck dead by lightning.

Is it not curious that twenty-four centuries afterward, in 1753,

the physicist Reichman was killed by lightning in trying to repeat

Franklin's experiment? This coincidence, however, is not the only one.

Pliny (ii., 53) recounts that lightning was evoked by King Porsenna at

the time when a monster named _Volta_, who was ravaging the country, was

directing himself toward the capital, Volsinies.

If we return to the Vedas, who had the habit of personifying all

phenomena, we shall find that the fire Agni was the son of the carpenter

who had manufactured the instrument by which it was produced, and of

_Maya_ (magic). He took the name of Akta (anointed, [Greek: christos])

when, nourished by libations of butter, he had acquired his full

development. The Persians attributed likewise to Zoroaster the power

of causing fire to descend from heaven through magic. Saint Clement of

Alexandria (_Recog_., lib. iv.) and Gregory of Tours (_Hist. de Fr._,

i., 5) speak of this. However this may be, the marvelous art was lost

at an early date, for it was at such a date that priests began to have

recourse to tricks that were more or less ingenious for lighting their

sacred fireplaces in an apparently supernatural manner.--_A. De Rochas,

in La Nature_.

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Scientific American Supplement, No. 392, July 7, 1883 · 第 74 / 86 题