The relation of the vein at the Central Mine, Keweenaw Point, to the Kearsarge Conglomerate
By: by L.L. Hubbard
Publisher: Darius D. Thorp
Published: 1895
Place of publication: Lansing, Mich
Language: eng
Number of pages: 10
Subjects: Copper mines and mining
Notes: Caption title.

"Paper read by L.L. Hubbard at the Lake Superior Mining Institute at its Third Annual Meeting"--Cover.

Includes bibliographical references.