AbstractsEarth & Environmental Science

"Work upon the oxidation of natural sulphides done at this laboratory indicates that laboratory methods might be successfully employed in seeking explanations of certain actual problems in the theory of ore deposition. This led me to experiment further with galena, sphalerite, and iron pyrite, which work confirms the results of Gottschalk and Buehler, namely, that the course of an oxidation is materially effected when mixtures of sulphides are employed rather than single individual minerals" – p. [1].