[Letters to Honorable Erskine M. Ross, William W. Morrow and William H. Hunt, judges of the Circuit Court of Appeals for the Ninth Circuit
Subtitle: Minerals Separation, Limited, et al., vs. Butte & Superior Mining Company. No. 3081
Contributors: Butte and Superior Mining Company
Published: 1918
Place of publication: New York
Language: eng
Subjects: Ore-dressing; Flotation