Lower Pennsylvanian species of mariopteris, eremopteris, diplothmema, and aneimites from the Appalachian region.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off,
1943.
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| Series: | Professional paper (Geological Survey (U.S.)) ;
197-C. Shorter contributions to general geology. |
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| Item Description: | "A posthumous work assembled and edited by Charles B. Read." Includes index. |
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| Physical Description: | 85-140 pages : including 39 plates. ; 29 cm. |