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4 Pages in
Charles Darwin's Library
associated with "flora - Iris xiphium"
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 71
Page 19
Production et fixation des variétés dans les végétaux
By: Carrière, E.-A. (Elie-Abel),
Publication info: Paris, Libraire agricole de la Maison Rustiane, 1865
Pages:
Page 65
Page 65