Essays on the Coal-Formation and Its Fossils
BY
LEO LESQUEREUX
Scans and Webpage
©George Langford III, 2011
in
 The GEOLOGY of PENNSYLVANIA
A GOVERNMENT SURVEY
by
HENRY DARWIN ROGERS
STATE GEOLOGIST
New York, D. Van Nostrand, ©1868
[These sketches and species are not mentioned in Lequereux's 1879 Description of the Coal Fossils of Pennsylvania - GL,III, ed.]
Plate XXI
Figure
 Botanical Name
 Reference
Upper
 Lepidodendron Sp. ? Vespertine Sandstone,
Mauch Chunk
 ...
Lower
 Filicoid - resembling primordial frond of Platycerium
 ...
Plate XXII
Figure
 Botanical Name
 Reference
Single
 Leaf of a Gymnosperm Plant
 ...
Plate XXIII
Figure
 Botanical Name
 Reference
Single
 Algoid - resembling a Desmarestia
 ...

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The links in the figure numbers above point to the descriptions in the Lesquereux 1868 text.
These three sketches accompany Prof. J.H. Balfour's Comments after Lesquereux's Catalogue of Fossil Plants.
Lesquereux - 1868 - Plate XXI
 		Lesquereux - 1868 - Plate XXII
 		Lesquereux - 1868 - Plate XXIII