Ressources minérales des États-Unis, 1914--partie II--non-métaux . ed à l'enquête au début de l'année, bien que l'enquête ultérieure indique qu'elles sont probablement notoirement d'une grande importance. Plusieurs autres gisements, jusqu'ici non enregistrés, ont également été signalés, y compris la magnésite et la dolomite près de Bagdadand magnésite près de Victor ville, tous deux dans le comté de San Bernardino, rapport anda, avec des échantillons, ont été reçus d'un dépôt supposé de magnésite près de Benson, Ariz. CALIFORNIE. Certains travaux ont été effectués sur les gisements de Red Mountain et Cedar Mountain, près de Livermore, Alameda County, et le fonctionnement oldroulatif d'un o

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Mineral Resources of the United States, 1914--Part II--Nonmetals . ed to the Survey early in the year, although later investigation indicates that these are probably notof large importance. Several other deposits, hitherto unrecorded, were also reported, including magnesite and dolomite near Bagdadand magnesite near Victor ville, both in San Bernardino County, anda report, with samples, was received from a supposed magnesitedeposit near Benson, Ariz. CALIFORNIA. Some work has been done on the deposits at Red Mountain andCedar Mountain, near Livermore, Alameda County, and the oldworkings of one of the idle mines near Portersville, Tulare County, have been reopened. The mine in San Benito County still remainsundeveloped and unproductive. A new mine has become productivein a small way near Madrone station, Santa Clara County, and therehas been some little development of the deposits on East AustinCreek, in Sonoma County. The location of the magnesite deposits inCalifornia is shown on Plate IV. U. S. GEOLOGICAL SURV MINERAL RESOURCES, 1914, PART II PLATE IV. MAP OF A PART OF CALIFORNIA, SHOWING DISTRIBUTION OF MAGNESITE DEPOSITS. MAGNESITB. 579 Placer County.—Recently discovered deposits of magnesite nearTowle, in Placer County, Cal., were reported early in the year anddescribed as situated in sec. 6, T. 15 X.. R. 11 E., and in sees. 24and 36, T. 16 N., R. 10 E. Later in the season these deposits wereexamined by H. S. Gale. The magnesite described as situated insec. 6, lies in the bed of Canyon Creek about one-fourth of a milesouth of and below the railroad at Towle station. That in sec. 24, lies 2^ miles north, a little east of Towle in the steep canyon slopeon the south side of Bear River. The locality described as in sec.36 was not visited, nor any further information concerning it ob-tained, nor is it supposed to be of importance. In both depositsexamined the magnesite occurs in thin veins and irregular lensesor masess in brecciated serpentine, in general so far as ex

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