De Re Metallica Part 3

Many persons hold the opinion that the metal industries are fortuitous and that the occupation is one of sordid toil, and altogether a kind of business requiring not so much skill as labour. But as for myself, when I reflect carefully upon its special points one by one, it appears to be far otherwise. For a miner must have the greatest skill in his work, that he may know first of all what mountain or hill, what valley or plain, can be prospected most profitably, or what he should leave alone; moreover, he must understand the veins, stringers[1] and seams in the rocks[2]. Then he must be thoroughly familiar with the many and varied species of earths, juices[3], gems, stones, marbles, rocks, metals, and compounds[4]. He must also have a complete knowledge of the method of making all underground works. Lastly, there are the various systems of a.s.saying[5] substances and of preparing them for smelting; and here again there are many altogether diverse methods. For there is one method for gold and silver, another for copper, another for quicksilver, another for iron, another for lead, and even tin and bis.m.u.th[6] are treated differently from lead. Although the evaporation of juices is an art apparently quite distinct from metallurgy, yet they ought not to be considered separately, inasmuch as these juices are also often dug out of the ground solidified, or they are produced from certain kinds of earth and stones which the miners dig up, and some of the juices are not themselves devoid of metals. Again, their treatment is not simple, since there is one method for common salt, another for soda[7], another for alum, another for vitriol[8], another for sulphur, and another for bitumen.

Furthermore, there are many arts and sciences of which a miner should not be ignorant. First there is Philosophy, that he may discern the origin, cause, and nature of subterranean things; for then he will be able to dig out the veins easily and advantageously, and to obtain more abundant results from his mining. Secondly, there is Medicine, that he may be able to look after his diggers and other workmen, that they do not meet with those diseases to which they are more liable than workmen in other occupations, or if they do meet with them, that he himself may be able to heal them or may see that the doctors do so. Thirdly follows Astronomy, that he may know the divisions of the heavens and from them judge the direction of the veins. Fourthly, there is the science of Surveying that he may be able to estimate how deep a shaft should be sunk to reach the tunnel which is being driven to it, and to determine the limits and boundaries in these workings, especially in depth.

Fifthly, his knowledge of Arithmetical Science should be such that he may calculate the cost to be incurred in the machinery and the working of the mine. Sixthly, his learning must comprise Architecture, that he himself may construct the various machines and timber work required underground, or that he may be able to explain the method of the construction to others. Next, he must have knowledge of Drawing, that he can draw plans of his machinery. Lastly, there is the Law, especially that dealing with metals, that he may claim his own rights, that he may undertake the duty of giving others his opinion on legal matters, that he may not take another man's property and so make trouble for himself, and that he may fulfil his obligations to others according to the law.

It is therefore necessary that those who take an interest in the methods and precepts of mining and metallurgy should read these and others of our books studiously and diligently; or on every point they should consult expert mining people, though they will discover few who are skilled in the whole art. As a rule one man understands only the methods of mining, another possesses the knowledge of was.h.i.+ng[9], another is experienced in the art of smelting, another has a knowledge of measuring the hidden parts of the earth, another is skilful in the art of making machines, and finally, another is learned in mining law. But as for us, though we may not have perfected the whole art of the discovery and preparation of metals, at least we can be of great a.s.sistance to persons studious in its acquisition.

But let us now approach the subject we have undertaken. Since there has always been the greatest disagreement amongst men concerning metals and mining, some praising, others utterly condemning them, therefore I have decided that before imparting my instruction, I should carefully weigh the facts with a view to discovering the truth in this matter.

So I may begin with the question of utility, which is a two-fold one, for either it may be asked whether the art of mining is really profitable or not to those who are engaged in it, or whether it is useful or not to the rest of mankind. Those who think mining of no advantage to the men who follow the occupation a.s.sert, first, that scarcely one in a hundred who dig metals or other such things derive profit therefrom; and again, that miners, because they entrust their certain and well-established wealth to dubious and slippery fortune, generally deceive themselves, and as a result, impoverished by expenses and losses, in the end spend the most bitter and most miserable of lives. But persons who hold these views do not perceive how much a learned and experienced miner differs from one ignorant and unskilled in the art. The latter digs out the ore without any careful discrimination, while the former first a.s.says and proves it, and when he finds the veins either too narrow and hard, or too wide and soft, he infers therefrom that these cannot be mined profitably, and so works only the approved ones. What wonder then if we find the incompetent miner suffers loss, while the competent one is rewarded by an abundant return from his mining? The same thing applies to husbandmen. For those who cultivate land which is alike arid, heavy, and barren, and in which they sow seeds, do not make so great a harvest as those who cultivate a fertile and mellow soil and sow their grain in that. And since by far the greater number of miners are unskilled rather than skilled in the art, it follows that mining is a profitable occupation to very few men, and a source of loss to many more. Therefore the ma.s.s of miners who are quite unskilled and ignorant in the knowledge of veins not infrequently lose both time and trouble[10]. Such men are accustomed for the most part to take to mining, either when through being weighted with the fetters of large and heavy debts, they have abandoned a business, or desiring to change their occupation, have left the reaping-hook and plough; and so if at any time such a man discovers rich veins or other abounding mining produce, this occurs more by good luck than through any knowledge on his part. We learn from history that mining has brought wealth to many, for from old writings it is well known that prosperous Republics, not a few kings, and many private persons, have made fortunes through mines and their produce. This subject, by the use of many clear and ill.u.s.trious examples, I have dilated upon and explained in the first Book of my work ent.i.tled "_De Veteribus et Novis Metallis_," from which it is evident that mining is very profitable to those who give it care and attention.

Again, those who condemn the mining industry say that it is not in the least stable, and they glorify agriculture beyond measure. But I do not see how they can say this with truth, for the silver mines at Freiberg in Meissen remain still unexhausted after 400 years, and the lead mines of Goslar after 600 years. The proof of this can be found in the monuments of history. The gold and silver mines belonging to the communities of Schemnitz and Cremnitz have been worked for 800 years, and these latter are said to be the most ancient privileges of the inhabitants. Some then say the profit from an individual mine is unstable, as if forsooth, the miner is, or ought to be dependent on only one mine, and as if many men do not bear in common their expenses in mining, or as if one experienced in his art does not dig another vein, if fortune does not amply respond to his prayers in the first case. The New Schonberg at Freiberg has remained stable beyond the memory of man[11].

It is not my intention to detract anything from the dignity of agriculture, and that the profits of mining are less stable I will always and readily admit, for the veins do in time cease to yield metals, whereas the fields bring forth fruits every year. But though the business of mining may be less reliable it is more productive, so that in reckoning up, what is wanting in stability is found to be made up by productiveness. Indeed, the yearly profit of a lead mine in comparison with the fruitfulness of the best fields, is three times or at least twice as great. How much does the profit from gold or silver mines exceed that earned from agriculture? Wherefore truly and shrewdly does Xenophon[12] write about the Athenian silver mines: "There is land of such a nature that if you sow, it does not yield crops, but if you dig, it nourishes many more than if it had borne fruit." So let the farmers have for themselves the fruitful fields and cultivate the fertile hills for the sake of their produce; but let them leave to miners the gloomy valleys and sterile mountains, that they may draw forth from these, gems and metals which can buy, not only the crops, but all things that are sold.

The critics say further that mining is a perilous occupation to pursue, because the miners are sometimes killed by the pestilential air which they breathe; sometimes their lungs rot away; sometimes the men perish by being crushed in ma.s.ses of rock; sometimes, falling from the ladders into the shafts, they break their arms, legs, or necks; and it is added there is no compensation which should be thought great enough to equalize the extreme dangers to safety and life. These occurrences, I confess, are of exceeding gravity, and moreover, fraught with terror and peril, so that I should consider that the metals should not be dug up at all, if such things were to happen very frequently to the miners, or if they could not safely guard against such risks by any means. Who would not prefer to live rather than to possess all things, even the metals?

For he who thus perishes possesses nothing, but relinquishes all to his heirs. But since things like this rarely happen, and only in so far as workmen are careless, they do not deter miners from carrying on their trade any more than it would deter a carpenter from his, because one of his mates has acted incautiously and lost his life by falling from a high building. I have thus answered each argument which critics are wont to put before me when they a.s.sert that mining is an undesirable occupation, because it involves expense with uncertainty of return, because it is changeable, and because it is dangerous to those engaged in it.

Now I come to those critics who say that mining is not useful to the rest of mankind because forsooth, gems, metals, and other mineral products are worthless in themselves. This admission they try to extort from us, partly by arguments and examples, partly by misrepresentations and abuse of us. First, they make use of this argument: "The earth does not conceal and remove from our eyes those things which are useful and necessary to mankind, but on the contrary, like a beneficent and kindly mother she yields in large abundance from her bounty and brings into the light of day the herbs, vegetables, grains, and fruits, and the trees.

The minerals on the other hand she buries far beneath in the depth of the ground; therefore, they should not be sought. But they are dug out by wicked men who, as the poets say, are the products of the Iron Age."

Ovid censures their audacity in the following lines:--

"And not only was the rich soil required to furnish corn and due sustenance, but men even descended into the entrails of the earth, and they dug up riches, those incentives to vice, which the earth had hidden and had removed to the Stygian shades.

Then destructive iron came forth, and gold, more destructive than iron; then war came forth."[13]

Another of their arguments is this: Metals offer to men no advantages, therefore we ought not to search them out. For whereas man is composed of soul and body, neither is in want of minerals. The sweetest food of the soul is the contemplation of nature, a knowledge of the finest arts and sciences, an understanding of virtue; and if he interests his mind in excellent things, if he exercise his body, he will be satisfied with this feast of n.o.ble thoughts and knowledge, and have no desire for other things. Now although the human body may be content with necessary food and clothing, yet the fruits of the earth and the animals of different kinds supply him in wonderful abundance with food and drink, from which the body may be suitably nourished and strengthened and life prolonged to old age. Flax, wool, and the skins of many animals provide plentiful clothing low in price; while a luxurious kind, not hard to procure--that is the so called _seric_ material, is furnished by the down of trees and the webs of the silk worm. So that the body has absolutely no need of the metals, so hidden in the depths of the earth and for the greater part very expensive. Wherefore it is said that this maxim of Euripides is approved in a.s.semblies of learned men, and with good reason was always on the lips of Socrates:

"Works of silver and purple are of use, not for human life, but rather for Tragedians."[14]

These critics praise also this saying from Timocreon of Rhodes:

"O Unseeing Plutus, would that thou hadst never appeared in the earth or in the sea or on the land, but that thou didst have thy habitation in Tartarus and Acheron, for out of thee arise all evil things which overtake mankind"[15].

They greatly extol these lines from Phocylides:

"Gold and silver are injurious to mortals; gold is the source of crime, the plague of life, and the ruin of all things. Would that thou were not such an attractive scourge! because of thee arise robberies, homicides, warfare, brothers are maddened against brothers, and children against parents."

This from Naumachius also pleases them:

"Gold and silver are but dust, like the stones that lie scattered on the pebbly beach, or on the margins of the rivers."

On the other hand, they censure these verses of Euripides:

"Plutus is the G.o.d for wise men; all else is mere folly and at the same time a deception in words."

So in like manner these lines from Theognis:

"O Plutus, thou most beautiful and placid G.o.d! whilst I have thee, however bad I am, I can be regarded as good."

They also blame Aristodemus, the Spartan, for these words:

"Money makes the man; no one who is poor is either good or honoured."

And they rebuke these songs of Timocles:

"Money is the life and soul of mortal men. He who has not heaped up riches for himself wanders like a dead man amongst the living."

Finally, they blame Menander when he wrote:

"Epicharmus a.s.serts that the G.o.ds are water, wind, fire, earth, sun, and stars. But I am of opinion that the G.o.ds of any use to us are silver and gold; for if thou wilt set these up in thy house thou mayest seek whatever thou wilt. All things will fall to thy lot; land, houses, slaves, silver-work; moreover friends, judges, and witnesses. Only give freely, for thus thou hast the G.o.ds to serve thee."

But besides this, the strongest argument of the detractors is that the fields are devastated by mining operations, for which reason formerly Italians were warned by law that no one should dig the earth for metals and so injure their very fertile fields, their vineyards, and their olive groves. Also they argue that the woods and groves are cut down, for there is need of an endless amount of wood for timbers, machines, and the smelting of metals. And when the woods and groves are felled, then are exterminated the beasts and birds, very many of which furnish a pleasant and agreeable food for man. Further, when the ores are washed, the water which has been used poisons the brooks and streams, and either destroys the fish or drives them away. Therefore the inhabitants of these regions, on account of the devastation of their fields, woods, groves, brooks and rivers, find great difficulty in procuring the necessaries of life, and by reason of the destruction of the timber they are forced to greater expense in erecting buildings. Thus it is said, it is clear to all that there is greater detriment from mining than the value of the metals which the mining produces.

So in fierce contention they clamour, showing by such examples as follow that every great man has been content with virtue, and despised metals.

They praise Bias because he esteemed the metals merely as fortune's playthings, not as his real wealth. When his enemies had captured his native Priene, and his fellow-citizens laden with precious things had betaken themselves to flight, he was asked by one, why he carried away none of his goods with him, and he replied, "I carry all my possessions with me." And it is said that Socrates, having received twenty minae sent to him by Aristippus, a grateful disciple, refused them and sent them back to him by the command of his conscience. Aristippus, following his example in this matter, despised gold and regarded it as of no value. And once when he was making a journey with his slaves, and they, laden with the gold, went too slowly, he ordered them to keep only as much of it as they could carry without distress and to throw away the remainder[16]. Moreover, Anacreon of Teos, an ancient and n.o.ble poet, because he had been troubled about them for two nights, returned five talents which had been given him by Polycrates, saying that they were not worth the anxiety which he had gone through on their account. In like manner celebrated and exceedingly powerful princes have imitated the philosophers in their scorn and contempt for gold and silver. There was for example, Phocion, the Athenian, who was appointed general of the army so many times, and who, when a large sum of gold was sent to him as a gift by Alexander, King of Macedon, deemed it trifling and scorned it.

And Marcus Curius ordered the gold to be carried back to the Samnites, as did also Fabricius Luscinus with regard to the silver and copper. And certain Republics have forbidden their citizens the use and employment of gold and silver by law and ordinance; the Lacedaemonians, by the decrees and ordinances of Lycurgus, used diligently to enquire among their citizens whether they possessed any of these things or not, and the possessor, when he was caught, was punished according to law and justice. The inhabitants of a town on the Tigris, called Babytace, buried their gold in the ground so that no one should use it. The Scythians condemned the use of gold and silver so that they might not become avaricious.

Further are the metals reviled; in the first place people wantonly abuse gold and silver and call them deadly and nefarious pests of the human race, because those who possess them are in the greatest peril, for those who have none lay snares for the possessors of wealth, and thus again and again the metals have been the cause of destruction and ruin.

For example, Polymnestor, King of Thrace, to obtain possession of his gold, killed Polydorus, his n.o.ble guest and the son of Priam, his father-in-law, and old friend. Pygmalion, the King of Tyre, in order that he might seize treasures of gold and silver, killed his sister's husband, a priest, taking no account of either kins.h.i.+p or religion. For love of gold Eriphyle betrayed her husband Amphiaraus to his enemy.

Likewise Lasthenes betrayed the city of Olynthus to Philip of Macedon.

The daughter of Spurius Tarpeius, having been bribed with gold, admitted the Sabines into the citadel of Rome. Claudius Curio sold his country for gold to Caesar, the Dictator. Gold, too, was the cause of the downfall of Aesculapius, the great physician, who it was believed was the son of Apollo. Similarly Marcus Cra.s.sus, through his eager desire for the gold of the Parthians, was completely overcome together with his son and eleven legions, and became the jest of his enemies; for they poured liquid gold into the gaping mouth of the slain Cra.s.sus, saying: "Thou hast thirsted for gold, therefore drink gold."

But why need I cite here these many examples from history?[17] It is almost our daily experience to learn that, for the sake of obtaining gold and silver, doors are burst open, walls are pierced, wretched travellers are struck down by rapacious and cruel men born to theft, sacrilege, invasion, and robbery. We see thieves seized and strung up before us, sacrilegious persons burnt alive, the limbs of robbers broken on the wheel, wars waged for the same reason, which are not only destructive to those against whom they are waged, but to those also who carry them on. Nay, but they say that the precious metals foster all manner of vice, such as the seduction of women, adultery, and unchast.i.ty, in short, crimes of violence against the person. Therefore the Poets, when they represent Jove transformed into a golden shower and falling into the lap of Danae, merely mean that he had found for himself a safe road by the use of gold, by which he might enter the tower for the purpose of violating the maiden. Moreover, the fidelity of many men is overthrown by the love of gold and silver, judicial sentences are bought, and innumerable crimes are perpetrated. For truly, as Propertius says:

"This is indeed the Golden Age. The greatest rewards come from gold; by gold love is won; by gold is faith destroyed; by gold is justice bought; the law follows the track of gold, while modesty will soon follow it when law is gone."

Diphilus says:

"I consider that nothing is more powerful than gold. By it all things are torn asunder; all things are accomplished."

Therefore, all the n.o.blest and best despise these riches, deservedly and with justice, and esteem them as nothing. And this is said by the old man in Plautus:

"I hate gold. It has often impelled many people to many wrong acts."

In this country too, the poets inveigh with stinging reproaches against money coined from gold and silver. And especially did Juvenal:

"Since the majesty of wealth is the most sacred thing among us; although, O pernicious money, thou dost not yet inhabit a temple, nor have we erected altars to money."

And in another place:

"Demoralising money first introduced foreign customs, and voluptuous wealth weakened our race with disgraceful luxury."[18]

And very many vehemently praise the barter system which men used before money was devised, and which even now obtains among certain simple peoples.

And next they raise a great outcry against other metals, as iron, than which they say nothing more pernicious could have been brought into the life of man. For it is employed in making swords, javelins, spears, pikes, arrows--weapons by which men are wounded, and which cause slaughter, robbery, and wars. These things so moved the wrath of Pliny that he wrote: "Iron is used not only in hand to hand fighting, but also to form the winged missiles of war, sometimes for hurling engines, sometimes for lances, sometimes even for arrows. I look upon it as the most deadly fruit of human ingenuity. For to bring Death to men more quickly we have given wings to iron and taught it to fly."[19] The spear, the arrow from the bow, or the bolt from the catapult and other engines can be driven into the body of only one man, while the iron cannon-ball fired through the air, can go through the bodies of many men, and there is no marble or stone object so hard that it cannot be shattered by the force and shock. Therefore it levels the highest towers to the ground, shatters and destroys the strongest walls. Certainly the ballistas which throw stones, the battering rams and other ancient war engines for making breaches in walls of fortresses and hurling down strongholds, seem to have little power in comparison with our present cannon. These emit horrible sounds and noises, not less than thunder, flashes of fire burst from them like the lightning, striking, crus.h.i.+ng, and shattering buildings, belching forth flames and kindling fires even as lightning flashes. So that with more justice could it be said of the impious men of our age than of Salmoneus of ancient days, that they had s.n.a.t.c.hed lightning from Jupiter and wrested it from his hands. Nay, rather there has been sent from the infernal regions to the earth this force for the destruction of men, so that Death may s.n.a.t.c.h to himself as many as possible by one stroke.

But because muskets are nowadays rarely made of iron, and the large ones never, but of a certain mixture of copper and tin, they confer more maledictions on copper and tin than on iron. In this connection too, they mention the brazen bull of Phalaris, the brazen ox of the people of Pergamus, racks in the shape of an iron dog or a horse, manacles, shackles, wedges, hooks, and red-hot plates. Cruelly racked by such instruments, people are driven to confess crimes and misdeeds which they have never committed, and innocent men are miserably tortured to death by every conceivable kind of torment.

It is claimed too, that lead is a pestilential and noxious metal, for men are punished by means of molten lead, as Horace describes in the ode addressed to the G.o.ddess Fortune: "Cruel Necessity ever goes before thee bearing in her brazen hand the spikes and wedges, while the awful hook and molten lead are also not lacking."[20] In their desire to excite greater odium for this metal, they are not silent about the leaden b.a.l.l.s of muskets, and they find in it the cause of wounds and death.