Classification of the Cambrian system of North America
By: by C.D. Walcott.
Series: CIHM/ICMH microfiche series -- no. 58399.
Publisher: s.n.
Published: 1987
Place of publication: [S.l
Language: eng
Format: Microform
Number of pages: 157
Subjects: Paleontology -- Cambrian.
Notes: Cover title.

"[From the American Journal of Science, Vol. XXXII, August, 1886.]"--P. [138].

Reproduction of original in: Geological Survey of Canada. Library.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1987. 1 microfiche (14 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 58399).