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  1. Irrigation
  2. California Department of Eng …

WHAT

  1. Atlas Map (1)
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  3. Vegetation (1)

WHERE

  1. Pennsylvania (1)

WHO

  1. Barnard, William S. (1)
  2. Gray, Ormando Willis (1)
  3. Porter, Thomas Conrad, 18 … (1)
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  5. Walling, H. F. (1)

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  1. 1872 (1)
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Penn. flora.  
Map of Pennsylvania col...
Penn. flora.
1872
State Atlas
Author
Porter, Thomas Conrad, 1822-1901
Full Title
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)
Publisher
Stedman, Brown & Lyon
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