A Preliminary Descriptive Catalogue of the Systematic Collections in Economic Geology and Metallurgy in the United States National Museum


Book Description

The systematic collections in economic geology and metallurgy are designed to show the actual occurrence of each metal and the processes used in their extraction; to these are added illustrations of the occurrences of non-metallic ores and their utilization. The systematic collections should be carefully distinguished from the geographical collection.

























Supplementary Catalogue


Book Description