The San Francisco call., 1898-04-03
|47 MARKET STREET.

well as smaller placer mines generally. Some of the important mines at this point are working about half the force em- ployed at this time last year. and the correspondingly reduced.
 Development work Is being pushed to quite an extent on Harrison Gulch and Hall City properties, says the Search light. Boswell & Johnson have been en- gagged in opening up a claim near Hall City that Is reported to be especially promising. Work on this claim has been prosecuted for over a year, and the showing at present Is all that can be de- sired. A good body of rich free gold ore has awarded the efforts of the owners, outcome of their venture. J. R. Hall will start his mill by the first of the month on ore from the Lucky Hall. The Midas Mining Company is employing over sixty men In its mine and mill, and is producing good values right along. The cyanide plant is successfully treating the ore in an economical manner and the permanency of the mine is an established fact.
 Another strike has been made in the Valparaiso mine, Amador County, fifty three feet below the tunnel level.
 According to the Amador Ledger, clean progressing rapidly. The old shaft is opened about 900 feet from the collar. The work of mining through the new shaft goes on steadily and the 40-stamp '. Drifting and cross-cutting at the 1900 level of the South Spring shaft is pro- gressing. Ore is being encountered which IS good, but so far has not come in quan- the mill.
 The Colfax Sentinel says the six months just closing have been disastrous for hydraulic and shallow gravel mining water: The rainfall at Colfax to date has been 25.09 inches. as against 5O.4 inches to corresponding date of last season. At Robinson's Flat, near Forest Hill, the snow IS at present only 11a feet in depth. Last season at this date there were nearly sixteen feet. well settled and frozen.
 The Kaffa gravel mine in Butte County IS to be worked on larger scale by an English company.
 The Denver mine in Butte County Is to have chlorination works.
 The Calaveras Citizen says 1t is stated that C. D. Lane will develop the Illinois mine at once. A shaft 135 feet is in good order, and sufficient ore is in sight to warrant the erection of a mill
 M; Burton, who has been successfully mining quartz crystals in Calaveras County, has bought the Boucher & $7O0O
 Operations are to be commenced in the for ore shipments have been placed with the owners of the property. The rich claim discovered several weeks ago by John T. Newcomer near the Star mine, Tuolumne County, is showing uL splendidly. A shaft is being driven down and at twenty-five feet shows a strong ledge of rock that will mill over $100 pel ton, while a like amount of the concen- trates is worth from $50 up to $10OO The percentage of sulphurets Is heavy Union-Democrat.
 Developments at the Central Eureka mine are progressing at lively gait. The shaft Is being sunk from the 900 level al the rate of five feet in twenty-four hours A drift was started to the north on the 900 level last week. The uprise is being continued from the 600 to the 500 level On the 600 level they are drifting on fine body of ore.-amador Ledger. At the Central Eureka in Amadol County the shaft has reached 1000 feet At the 600 level drifting is progressing IT Q large ledge of low grade ore. A drif has also been started in the 900 level. is likely that 40-stamp mill will b, erected in the fall.
 The output of the Argonaut in February was between $56 900. and $57 900 in free golt and $9O00 in sulphurets. The expenses ar, estimated at S15 900 a month.
 The Jamestown Magnet says the .Sierr; Railroad Company has men at work nea 1 Cooperstown prospecting for coal. At depth of fifty-four feet they struck seam of indifferent quality three and l half feet thick. The company intend | setting up machinery at CooperstoWn