. Annual report . ominance of native silver in the rich parts,whereas in the rest of the veins, though this form of silver occurs in considerablequantity in places, yet argentite seems to be the form in which it it generally found. Again, it is interesting to know that both the mineral waters and the inflam-mable gas that were met with in opening up the Silver Islet mine have also beenencountered at other points in the district. At the Rabbit Mountain mine in one ofthe lower levels I saw water running over the breast of the drift which gave off a faintodor of sulphuretted hydrogen and was depo
. Annual report . ominance of native silver in the rich parts,whereas in the rest of the veins, though this form of silver occurs in considerablequantity in places, yet argentite seems to be the form in which it it generally found. Again, it is interesting to know that both the mineral waters and the inflam-mable gas that were met with in opening up the Silver Islet mine have also beenencountered at other points in the district. At the Rabbit Mountain mine in one ofthe lower levels I saw water running over the breast of the drift which gave off a faintodor of sulphuretted hydrogen and was depositing a while flocculent material, whilstboth at this place and at the Beaver mine I was informed that small quantities of in-flammable gas had been met with. These veins, like those of Temiskaming, frequently present a brecciated appearance,angular fragments of rock being enclosed in the vein material. Ingall found the distribution of the silver minerals in the veins very irregular, the 200 Bureau of Mines No. 4. Fig. 97.—Mill at the Beaver mine.
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