Report on mining and the mechanical preparation of ores
By: by Henry F.Q. D'Aligny ... and Alfred Huet, F. Geyler and C. Lepainteur ...
Contributors: Huet, Alfred.; Geyler, F.; Lepainteur, C.
Publisher: Govt. Print. Off.
Published: 1870
Place of publication: Washington
Language: eng
Number of pages: 104
Subjects: Mines and mineral resources; Mining machinery; Ore-dressing
Notes: At head of title: Paris universal exposition, 1867. Reports of the United States Commissioners.