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of 1904, a Frenchman named La Rose,
working on the new railway being opened
through to the rich farm lands beyond,
came upon a vein of silver in a railway
cut at the upper end of Cobalt lake. The
story goes that he stubbed his toe on the
rock, and looking at the spot noticed that
it was different from the surrounding
rock. La Rose, however, knew little of
the mining laws or of the real value of
his discovery, and sold his rights in the
newly discovered mine for $30,000. The
property is the famous La Rose or Tim-
inons mine, and is worth millions.
In less than a year, the land within a

SLABS OF SILVER FROM TRETHEWEY Mine,

Slab back of hammer weighs 79 lbs., worth $491. Analradius of three or four miles of Cobalt

ysis-66,67 per cent silver, 2.15 cobalt, .41 nickel, lake was taken up, and many new mines

1.60 iron, 7.03 arsenic, 9.67 antimony, .22 sulphur,

6.72 calcium carbonate, 1.23 magnesium carbonate, were discovered. Before the end of the present season, and less than two years after the first discovery, upwards of fifty And yet this is not so strange after all, mines will be shipping ore from Cobalt. when we consider the peculiar character So far, some three million dollars' worth of the mines. The silver is found only of ore has been shipped.

in narrow veins, generally not more than One of the peculiar things about the three or four inches wide, and showing Cobalt country is that before the final frequently at the surface only a narrow discovery, prospectors had been over and line of silver, perhaps not a quarter of over the ground, had camped time and an inch wide. Even in the richest mining again on the shores of Cobalt lake, but properties now in operation, some of the had never even suspected the existence best veins have been walked over day of the richest silver mines in America, after day by proprietors and workmen uncounted fortune within their grasp. alike, before being discovered. In the

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A BACK STREET IN COBALT, LEADING TO THE FRENCH QUARTER

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answer

may be

ver come to appear here in this form? How deep do the veins run? Etc. The

to such questions involves a good deal of technical explanation. In general, however, it may pointed out that there are three classes of rock formation involved. At certain points an old rock formation called the Keewatin - or "greenstone," from its color

is to be found. This Tent Hill, COBALT.

greenstone was at a later Presbyterian church tent at right.

stage covered with an

other formation, called case of one of the mines, the story is told the Huronian. Through this Huronian, at that father and son had been out pros- a still later stage, at varicus points, there pecting for days and were at last tired surged up in molten form a conglomerate out and about to give it up, when the rock known as diabase. The diabase, in father lay down on the ground to rest, cooling, left cracks or fissures; and it is and finding a stone under his head, went these cracks that are filled with the veins to remove it, when to his astonishment he of native silver. It is supposed that the found it to be solid silver. Another of silver was either strained out of the surthe mines—the Foster-was discovered rounding rock in its molten state or that as the result of trenching, i. e., removing it was deposited there by the heated the soil from the rock across a certain waters that surged up through these fisarea, and examining the exposed rock sures from below. surface for veins. This is an expensive Now, the diabase in which the silver method of prospecting, but in this in- is found is met with practically only in stance it was worth the expense.

the Huronian strata overlying the KeeBut if the veins are small and difficult watin rock. This Huronian rock has to discover on the surface, they are been worn down in many places by the nevertheless exceedingly rich, for in most cases they are practically solid silver, and the ore in some cases yields

yields as much as $2,000 to $3,000

It is not an uncommon thing for nuggets of solid silver to be taken out weighing from 300 to 600 lbs. The ore itself is packed in sacks, shipped, and sold in three grades according to its richness.

In connection with these views of silver, a number of interesting questions might be asked. How did the sil

Part of TRETHEWEY MINE PROPERTY ON Hill OVERLOOKING COBALT.

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per ton.

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One of the newer plants just starting.

still be remarkable for its valuable deposits of smaltite—an arsenide of cobalt, nickel, and iron—from which cobalt is obtained. The uses to which cobalt is put have thu

far been limited; but if Edison, who is operating a cobalt mine on the Montreal river, should succeed in extending its use, as seems probable, in the construction of electrical storage batteries, then the value of these mining properties will be immeasurably increased.

But if the mines in the Cobalt district

are interesting, Cobalt itself and the HUDSON BAY MINE.

neighboring towns are doubly so. Hither

as by a magnet are drawn adventurous action of natural forces in the course of spirits from almost every quarter of the millions of years, and on the higher London, Yankee speculators from “down

globe-Englishmen from the heart of ground the greenstone underlying it is once again exposed. It is supposed, tralia, German Jews, Syrians, Chinese,

East," miners from California and Austherefore, that the depth of the silver

Italian navvies, Frenchmen from the veins depends on the depth of the Huronian strata in which they occur; and it is

lumber camps, Canadian and American estimated that in some places, in the

tourists, broken-down merchants and natural depressions filling up old valleys; students, all striving directly or indi

rich millionaires, school teachers and the Huronian formation is perhaps 500 feet deep, and the mines at such points fectly to gain some share of the new

. may be supposed to run to that depth

The public square in Cobalt is the also.

This whole question is, however, only gathering place for most of this floating a matter of theory, and time alone will population, and the scene presented from

the steps of the banks or the theater on tell definitely whether these theories are correct. It is worth noting, however, that esting in the extreme. The picturesque,

either side on a summer evening is interthe Huronian strata at other points farther north and south have not been found to contain silver in any quantity; and the only explanation that can be given at present, is that the small district some six or eight miles square in which Cobalt is situated was left undisturbed by the great forces and movements of nature that agitated the surrounding areas and prevented the silver deposits from being made.

The process of mining the ore varies with different veins. Sometimes it is carried on by means of open trenching, no shafts being put down. But in most cases shafts are sunk either in the hillsides or perpendicularly, according to the position of the vein. The La Rose mine has already reached a depth of 250 feet, while the Trethewey mine has gone down only about 100 feet. Even if such rich veins of silver did

Silver Vein and Discovery Post, TreTHEWEY MINE. not exist in this country, Cobalt would Slabs worth as high as $500 have been taken from this vein. narrow street, on the one hand, leads to shelter of the lumbermen's and miners' the French quarter, and through it a reading room, is an open-air shooting crowd is constantly coming and going. gallery; and on the rising ground in Here, at the entrance to another side front of the offices and shops at the turn street, is a quick-lunch wagon which is in the street, an evangelist is preaching being liberally patronized. In another to another crowd. The whole scene is corner of the square, a patent medicine characteristic of Cobalt and the north vendor, with torch and stand, is doing country, and is such as one would find his utmost to attract a crowd. Here, only in a typical northern mining or lumagain, at this side of the square, in the bering town.

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