The New Almaden mines are situated about twelve miles from San José, an important town fifty miles south of San Francisco. It was my pleasure to visit these mines several years ago, and learn something of the mode of working them. A small party of us took the train from San Francisco, and proceeded to San José, whence we travelled in carriages over an excellent road, which undulated just enough to make it interesting. Unfortunately for us, at the time of our visit, no work was in progress in the lower mines in consequence of one of those lawsuits for which the region is famous. Consequently we did not go down into the mine itself, but were obliged to content ourselves with an inspection of the reduction works.
I may remark, by the by, in speaking of these lawsuits of the New Almaden mine, that it is a peculiar dispensation of providential care or human cupidity to afflict every valuable piece of property in California with a lawsuit. I would not wish to assert that there is a dishonest man in all California, as the assertion might be followed by an assault on the writer by some enthusiastic resident of the Golden State; but I do say that the result of my observation was, that nothing could be found in California worth the having but that some claimant under a previous title would be sure to present himself. The New Almaden mines, as soon as their value became known, found plenty of claimants under Spanish titles and Indian titles. A great part of their revenue has been swallowed up in legal proceedings. When all these questions shall have been settled finally, I presume some claimant will turn up who holds a title given him by Columbus or Queen Isabella, and possibly by the founder of the Christian religion. Titles in California can go back to a wonderfully distant period, and they are always so indefinite as to afford holding-ground for a legal anchor.
FRAUDULENT TITLES.
I do not think a single mine or very valuable property in California has ever escaped legal difficulties. A rocky island in San Francisco Bay was pointed out to me as the locality of a Spanish claim. It had stood very quietly unoccupied, and was not considered worth ten cents for any practical purpose. By and by the government wished to use it as the site of a fortification. Immediately there arose a claimant under a Spanish title, and he came very near compelling the government to pay him a handsome price for the property. I presume, if a volcanic island should be thrown up in the middle of the bay, and somebody should take possession of a piece of it, somebody else would have a Spanish or Indian title to it, or would possibly produce a title from his Satanic Majesty, who had caused the island to be made for the especial benefit of the claimant, in return for valuable services rendered in times past or present.
On reaching the mines, we proceeded at once to the Reduction Works, and were politely shown around by Mr. Butterworth, the superintendent. We amused ourselves trying to lift flasks of quicksilver, and were nearly choked with the fumes arising from the places where the ore was being reduced. The reduction works are very simple affairs. They consist of piles of brick with furnaces beneath them, and with large cavities, down which the ore is placed. The ore is roasted, and the mercury rises in vapor, and is condensed. The furnaces are, most of them, forty feet long, eight feet wide, and ten feet high, and fixed near each other. Each furnace is divided into compartments, the fire occupying one at the end and a little below the compartment, where the ore is placed. The heat does not come in direct contact with the ore, but is driven through it by means of flues.
THE CONDENSING CHAMBERS.
There are several Condensing Chambers, so called, each of them eight feet long, four feet wide, and about six feet high. The chamber where the ore is placed is connected with the condensing chambers by means of a flue. Eight or ten tons of ore are placed in the furnace at one time. Seven other condensing chambers succeed the first, and the fumes are passed through one after the other, and finally into a tank, where they are condensed in water. Each chamber is so constructed that the mercury will flow into the iron tank, where it is collected and put in flasks. About sixty hours are required to extract the mercury from a charge of ore.
In spite of all precautions a great deal of mercury is lost. At the time of our visit, new furnaces had been constructed to take the place of some old ones, which had been torn down a year or two before. They showed us an immense cavity in the earth, where the quicksilver had accumulated and settled. Its weight had made places for it in some instances, while in others the ground was thoroughly saturated. These deposits were discovered quite by accident, and I was told that several tons of quicksilver had been taken from them.
One of our party became aware of the peculiar properties of quicksilver in a way that was not at all satisfactory. At the tank where the material was waiting to be placed in the flasks there were several gallons of mercury, and we amused ourselves by forcing our hands beneath the surface. The sensation was peculiar, and to most of us entirely new. Our friend was wearing a ring on one of the fingers that he thrust into the metal. The quicksilver allied with the gold, and suddenly it was discovered that the ring had turned white. His attention was called to it by our guide, who suggested that the ring must be removed instantly and heated. It was taken from the finger, not without considerable difficulty, placed upon a shovel, and heated. A goodly portion of the mercury, which had adhered to it, was driven away; but I believe the ring subsequently tumbled to pieces, and became valueless.