SONORA. CftU July 3L—(SjHiJftl). —The Hlckox Mining Company, a Utah corporation, formerly active In that state and recently reorganized with Paul Morris, now of San Francisco. as president, has taken over from Arthur Delray a lease and bond on the Big Bonanza mine on Piety hill, within the Sonora town limits, and is continuing its development. Mr. Delray has been retained as manager of the mine which, according to President Morris, has a production record of *3.500,000. through the disclosure of pockets7' of pure gold, or rock of exceptionally rich value, at various periods 6ince it waa first and profitably worked in 1BD1 by Chileans.Current operations at the property consist of drifting along the footwall section of a twelve-foot Tissue of porphyrltlc quartz and quartz stringers toward its Junction with a slate dike which, when reached, Is expected by the management to reveal another of the rich pockets which have earned for the mine an unLque position in California mining.Under a lease and bond from W, L. Mahoney of Darksboro. Can, R. D. Storey, Richard and. Lewis Scott and Robert Muir, San Francisco business men, are developing the Mahoney j placer gravel mine at the Junction of the main and south forks of the Stanislaus river, four miles northwest of Columbia. Operations are being prosecuted by a force of miners under Muir. After building a three-quarter-mlle aerial tram and electrio power line and installing an electric hoist, the new operators are sinking a vertical shaft which has already gained a depth of forty feet. It is estimated that only from ten to fif-! teen feet of additional sinking will i be required to reach bedrock. *-