Boulder clays
Subtitle: on the microscopic structure of certain boulder clays and the organisms contained in them
By: by George M. Dawson.
Series: Bulletin / Chicago Academy of Sciences -- v. 1, no. 6.; Bulletin (Chicago Academy of Sciences) -- v. 1, no. 6.; CIHM/ICMH microfiche series -- no. 02363.
Publisher: Printed for the Academy
Published: 1980
Place of publication: Chicago
Language: eng
Format: Microform
Number of pages: 69
Subjects: Boulders
Notes: "Read before the Chicago Academy of Sciences, June 9, 1885, by H.A. Johnson"--p. [59].

Reproduction of original in: National Library of Canada.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1980. 1 microfiche (11 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 02363).