The San Francisco call., 1898-12-18

was IldQe III the 4OTk nln6 at DOWluSNii a few days ago. The property has been yielding much golden treasure during the past year and mill was recently erected at the mine, which is kept running stead York and five sons of Downieville.-Grass Valley Union.
 Nevada. County has some extensive de- posts I,is,,s of copper ore; especially in the teresting to our home readers to know that there is a great boom in copper mining stocks, and Calumet and Hecla, owned principally in Boston, is selling at S650 a share. This is more than twice the price which the stock commanded during the copper boom of 1890, and other copper stocks have advanced in the same pro portion. On the present valuation or the stock, the Calumet and Hecla is worth $65 900, 000 These facts are worth publish ing, because California is full of promis- ing copper prospects, and also because our best copper developments are passing into the hands of foreign mining corporations, Californians appearing to be oblivfous to their value. It takes long time for a Californian to learn that the worlds s greatest mines are copper properties Nevada City Transcript.
 A rich vein of ore has been encountered in the Ydalpom mine at Copper City, owned by Dr. s. Graham and Theodore Popejoy. Assays made show an average of fully s30 per ton. Large numbers of prospectors are at present working in the Copper City district, and as work is being ner some good development is expected as a result.-Redding Searchlight.
 Unusually rich rock has been struck in the Purdy vein of the Hazel Dell group of mines, the rock in question going from 5000 to $300O per ton. There are six mines m this b pa and bs hs Mer a1e Tuolumne Independent.
 The Bedding Free Press announces "a fabulously rich strike" in the old Glad stone mine in the French Gulch district, in the western part of Shasta County. This is one of the famous mines of that part of the State. It was recently ac- John H. Walkotte, the former manager of the property, who appears to report that on further recent prospecting in the mine a new ledge of quartz carrying high value was discovered.
 The Sierra Railroad is being rapidly ex- tended from Jamestown to Sonora, the county seat of Tuolumne County, and it is expected that the extension will be ready for traffic soon after the opening of the new year. A considerable increase in the rate of mining development and tions should follow. The number of sim liar branch railroads which the mining regions of California sadly need could be numbered in dozens.
 Many new mining properties along the mother lode in this county are being de- veloped and are showing up well.-Pla- cerville Democrat.
 The season has arrived in the mountain ing blasting powder. The experience and the wisdom related to this operation would make good sized and interesting volume if properly set forth in type.
 The proposed unwatering of the Com stock (Nevada) lode, which is to be at tempted in January next, is exciting the deepest attention all over the world. A great deal depends upon the attempt for If it is successful 1t will mean a resumption of deep mining, which was abandoned on the ComStock years ago. It also means the success or failure of a new departure in the application of compressed air to the water elevator system.
 The hydraulic elevator to be used in the drainage of the lode was especially designed and manufactured for the pur- pose by the Risdon Iron and Locomotive Works. of San Francisco. The proposi- tion of employing a modification of the water elevator system and combining with it the application of compressed air is an experiment which is of the deepest interest to hydraulic engineers every where. The machine to be employed oc- cupies only 3x2 feet in the shaft, with a height corresponding, or course, to the height to be pumped. The apparatus is built in guides, which are to be lowered in sections of fifty feet. The pumping will low the Sutro tunnel and when that depth is unwatered the machine will be lowered to the 140foot mark. This performance will be repeated until the lode has been
 The Evans hydraulic elevator will be used for the purpose. It is maintained by its builders that fully 10,000000 gallons of water will be elected daily from the low low cost named in the contract and the comparative novelty of the appliance in connection with that class of work all tend to make the project one of general the project will do much to stimulate mining on the lode.