North American index fossils : invertebrates /
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
New York :
A. G. Seiler & Co.,
1909-1910.
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| Subjects: |
| Item Description: | "The earlier chapters appeared during the years 1906 and 1907 in the Columbia University School of Mines Quarterly."-Pref. Includes indexes. |
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| Physical Description: | 2 volumes : illustrations ; 25 cm. |