Note 50 — Chapter III · SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIES
Reading edition
Hill, Jas. M.: “Platinum and Allied Metals in 1917,” U.S. Geol. Surv., Min. Res., 1917, pt. 1, p. 11.
Return to CHAPTER III SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIESReturn to CHAPTER III SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIESReturn to CHAPTER III SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIESReturn to CHAPTER III SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIESReturn to CHAPTER III SOURCES OF SUPPLY OF PLATINUM METALS (b) FOREIGN COUNTRIES