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in |
The GEOLOGY of PENNSYLVANIA A GOVERNMENT SURVEY by HENRY DARWIN ROGERS STATE GEOLOGIST New York, D. Van Nostrand, ©1868 |
In the tables immediately below, the links in the Reference columns point to the plate numbers and page references in Lequereux's 1879 Description of the Coal Fossils of Pennsylvania. |
Plate XI
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Plate XII
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Click on image to see scanned image at full resolution; right click to see it at intermediate size. | The links in the figure numbers above point to the descriptions in the Lesquereux 1868 text. |