CHAPTER XIV

GOLD AND IRON

“SOME metals never rust; such a one is gold. Ancient gold pieces found

in the earth after centuries are as bright as the day they were coined.

No dross, no rust covers their effigy and inscription. Time, fire,

humidity, air, cannot harm this admirable metal. Therefore gold, on

account of its unchangeable luster and its rarity, is preëminently the

material for ornaments and coins.

“Furthermore, gold is the first metal that man became acquainted with,

long before iron, lead, tin, and the others. The reason why man’s

attention was called to gold, long centuries before iron, is not hard to

understand. Gold never rusts; iron rusts with such grievous facility

that in a short time, if we are not careful, it is converted into a red

earth. I have just told you that gold objects, however old they may be,

have come to us intact, even after having been in the dampest ground. As

for objects of iron, not one has reached us that was not in an

unrecognizable state. Corroded with rust, they have become a shapeless

earthy crust. Now I will ask Jules if the iron ore that is extracted

from the bowels of the earth can be real, pure iron, such as we use.”

“It seems to me not, Uncle; for if iron at any given moment is pure, it

must rust with time and change to earthy matter, as does the blade of a

knife buried in the ground.”

“My brother seems to reason correctly; I agree with him,” said Claire.

“And gold?” Uncle Paul asked her.

“It is different with gold,” she replied. “As that metal never rusts, is

not changed by time, air, and dampness, it must be pure.”

“Exactly so. In the rocks where it is disseminated in small scales, gold

is as brilliant as in jewelers’ boxes. Claire’s earrings have not more

luster than the particles set by nature in the rock. On the contrary,

what a pitiful appearance iron makes when it is found! It is an earthy

crust, a reddish stone, in which only after long research can one

suspect the presence of a metal; it is, in fact, rust, mixed more or

less with other substances. And then, it is not enough to perceive that

this rusty stone contains a metal; a way must still be found to

decompose the ore and bring the iron back to its metallic state. How

many efforts were necessary to attain this result, one of the most

difficult to achieve! How many fruitless attempts, how many painful

trials! Iron, then, was the last to become of use to us, long after gold

and other metals, like copper and silver, which are sometimes, but not

always, found pure. That most useful of metals was the last; but with it

an immense advance was made in human industry. From the moment man was

in possession of iron, he found himself master of the earth.

“At the head of substances that resist shock, iron must be placed; and

it is precisely its enormous resistance to rupture that makes this metal

so precious to us. Never would a gold, copper, marble, or stone anvil

resist the blows of the smith’s hammer as an iron one does. The hammer

itself, of what substance other than iron could it be made? If of

copper, silver, or gold, it would flatten, crush, and become useless in

a short time; for these metals lack hardness. If of stone, it would

break at the first rather hard blow. For these implements nothing can

take the place of iron. Nor can it for axes, saws, knives, the mason’s

chisel, the quarry-man’s pick, the plowshare, and a number of other

implements which cut, hew, pierce, plane, file, give or receive violent

blows. Iron alone has the hardness that can cut most other substances,

and the resistance that sets blows at defiance. In this respect iron is,

of all mineral substances, the handsomest present that Providence has

given to man. It is preëminently the material for tools, indispensable

in every art and industry.”

[Illustration: Hatchet of the Stone Age]

“Claire and I read one day,” said Jules, “that when the Spaniards

discovered America, the savages of that new country had gold axes, which

they very willingly exchanged for iron ones. I laughed at their

innocence, which made them give such a costly price for a piece of very

common metal. I think I see now that the exchange was to their

advantage.”

“Yes, decidedly to their advantage; for with an iron ax they could fell

trees to make their dug-out canoes and their huts; they could better

defend themselves against wild animals and attack the game in their

hunts. This piece of iron gave them an assurance of food, a substantial

boat, a warm dwelling, a redoubtable weapon. In comparison, a gold ax

was only a useless plaything.”

“If iron came last, what did men do before they knew of it?” asked

Jules.

“They made their weapons and tools of copper; for, like gold, this metal

is sometimes in a pure state so that it can be utilized just as nature

gives it to us. But a copper implement, having little hardness, is of

much less value than an iron one. Thus, in those far-off days of copper

axes, man was indeed a wretched creature.

“He was still more so before knowing copper. He cut a flint into a

point, or split it, and fastened it to the end of a stick; and that was

his only weapon.

“With this stone he had to procure food, clothing, a hut, and to defend

himself from wild beasts. His clothing was a skin thrown over his back,

his dwelling a hut made of twisted branches and mud; his food a piece of

flesh, produce of the chase. Domestic animals were unknown, the earth

uncultivated, all industry lacking.”

“And where was that?” asked Claire.

“Everywhere, my dear child; here, even in places where to-day are our

most flourishing towns. Oh! how forlorn man was before attaining, by the

help of iron, the well-being that we enjoy to-day; how forlorn was man

and what a great present Providence made him in giving him this metal!”

Just as Uncle Paul finished, Jacques knocked discreetly at the door;

Jules ran to open it. They whispered a few words to each other. It was

about an important affair for the next day.

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The Story-book of Science · 第 14 / 80 章