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7 Pages in
Charles Darwin's Library
associated with "flora - Polygala vulgaris"
Das entdeckte Geheimnis der Natur im Bau und in der Befruchtung der Blumen
By: Sprengel, Christian Konrad.
Publication info: Berlin, F. Vieweg, 1793
Pages:
Page 349
Page 351
Untersuchungen über die Bedeutung der Nektarien in den Blumen
By: Kurr, Johann Gottlob von,
Publication info: Stuttgart, Henneschen Buchhandlung, 1833
Pages:
Page 79
Page 79
Page 80
Page 80
slip attached 2, side 2