GENERAL.
Dickson, C. W. Platinum metals in other sources than in placers: Jour. Can. Min. Inst., vol. 8,1905.
Ingall, E. D. Platinum: Bull. Sect. Mines Geol. Survey, Canada, 1904.
Jacobs, E. The occurrence of platinum: Min. Rec, November, 1904.
Platinum: Eng. and Min. Jour., January 5, 1905.
Read, T. H. Platinum and palladium in certain copper ores; Eng. and Min. Jour., May 25, 1905.
UNITED STATES.
Day, D. T. Advance chapter on Government experiments on black sands: U. S. Geological Survey, 1905.
Fawcett, W. Government experiments on black sand: Min. and Sci. Press, July 29, 1905.
Stovall, D. H. Platinum and josephineite in Oregon: Min. World, December , 31. 1904.
--------Oregon's platinum: Los Angeles Min. Rev., May 20, 1906.
The search for platinum by the United States Geological Survey: Min. Mag., July, 1905.
RUSSIA.
Concerning the Iss platinum-bearing region and the distribution of platinum in the Ural in general:
Bulletin No. 2, Gold Mining Industry, St. Petersburg, January 15, 1904. Dyes, W.
A. Platinum production in Russia: (Chem. Industry, vol. 28, 1905, pp.
278-381. Platinum industry in Russia: Min. Jour., December 10, 1901.
Platinum production in Russia: Eng. and Min. Jour.. August 26 and September 2, 1905. Purington, C. W. The occurrence of platinum in the Ural Mountains; Eng. and Min. Jour., May 5
and 12, 1904. Spring, R. Einige Beobachtungen in den Platiinviischereien von Nisehnji Tagil: Zeitsclir. fiir prakt.
Geol., February, 1905.
BRITISH COLUMBIA.
Brock, R.
W. Platinum in British Columbia: Eng. and Min. Jour., February is,
1904. Platinum in the Cariboo: Eng. and Min. Jour., February 16, 1905.
Platinum in Cariboo: Am. Manuftr., March 2, 1905.
BRAZIL.
Hussak, K. Uber das Yorkommen von Palladium und Platin in Brasilien: Oesterr. Zeitschr. fiir Berg- und Huttenwesen, May 27, 1905.
SUMATRA.
Hundeshagen, L. Platinum in wollastonite, found in Sumatra: Inst. Min.and Metallurgy, London,
July 21, 1904.
EXTRACTION.
Recovery of platinum: Pae. Miner, November 1, 1905.
Stovall, D. H. Method of saving platinum: Min. World, May 27, 1905.
Undercurrents for platinum and flour gold: Min. Rev., October 15, 1905.
ASSAY.
Assay of the platinum metals: Eng. and Min. Jour., December 2, 1905.
Determination of platinum and iridium: Eng. and Min. Jour., October 14, 1905.
Dewey, F. P. Assay of ores for platinum: Min. World, May 30, 1905.
Lodge, R. W. Notes on assaying: Boston, 1904.
Nordenskjold. Die Platinprobe: Oesterr. Zeitschr. Berg- und Huttenwesen, September 9, 1905.
Ohly, J. Analysis, detection, and commercial value of the rare metals: Denver, 190tf.
Quennessen, L. Separation du platine et de P iridium, Ann. Chim. analytique, August 15, 1905.
PROPERTIES.
Campbell, W. Some notes on platinum and its deterioration: Elcctrochem. Ind., vol. 2, 1904, pp.
259-261. Hulett, G. A., and Bebger, H. W. Volatilisation of platinum: Jour. Am. Chem. Soc, vol 26, 1904,
pp. 1512-1515.
