David Rumsey
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Penn. flora.
1155.003
pilot4
Map of Pennsylvania colored to illustrate the distribution of its flora by Thos. C. Porter, Professor of Botany in Lafayette College, Easton, Pa. Engraved by W.S. Barnard, N.Y. (Published by Stedman, Brown & Lyon, Philadelphia, 1872)
1872
Porter, Thomas Conrad, 1822-1901
Stedman, Brown & Lyon
43 × 29 cm
1 : 1200000