Second contribution to the studies on the Cambrian faunas of North America /

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Bibliographic Details
Main Author: Walcott, Charles D. (Charles Doolittle), 1850-1927
Format: Book
Language:English
Published: Washington : Govt. Print. Off., 1886.
Series:Bulletin of the United States Geological Survey ; no. 30.
Subjects:
Local Note:With: no. 31 of the series. Bound together subsequent to publication.