Mining and Metallurgy
More editions
Proposers: Rudolph Porter, E. L. Ohnsorg, James A. Caselton. 66—George Cook
Sweet, Yonkers, N. Y. Present osition—1919 ... E. Bullock, F. D. Ras - 88—Roger
Webb Gannett Yunnan China. _ I . Present position—~1919 to date: Geologist, ...