Mineralogist's Pocket Reference, Latest Edition: Condensed and Simplified Information on the More Important Minerals...
Denver, CO: The Colorado Assaying Co., 1935. Soft cover. Latest edition, Ca. 1935, 16mo, [1], 48pp. Green wrappers, staple-bound. Very good with some wrinkling and rubbing to wraps and soiling to rear cover. A few notes in pencil on the inside covers. Issued as a promotional item for the Colorado.....