A microscopic study of the silver ores and their associated minerals ..
- publisher: Lancaster, Pa., Press of the New era printing company
- creator: Guild, Frank Nelson, 1870-
- Keyword: Silver ores
- years: 1917.
- pages: 1 p.l., p. 297-353. pl. x-xxi. 24 cm.
- class: TN431
- download: pdf file