12 Pages in Charles Darwin's Library associated with "flora - Viola"

Das entdeckte Geheimnis der Natur im Bau und in der Befruchtung der Blumen.
By: Sprengel, Christian Konrad.
Publication info: Berlin :F. Vieweg,1793.
Volume: Supplementary material in Darwin's copy
Pages: End Slip 5, side 2 End Slip 5, side 2
Leçons de botanique.
By: Saint-Hilaire, Auguste de,
Publication info: Paris :P.J. Loss,1841.
Pages: Page 403
Production et fixation des variétés dans les végétaux.
By: Carrière, Élie Abel.
Publication info: Paris :Libraire agricole de la Maison Rustiane,1865.
Pages: Page 65 Page 65
The regions of vegetation, being an analysis of the distribution of vegetable forms over the surface of the globe in connection with climate and physical agents.
By: Hinds, Richard Brinsley.
Publication info: London :G.J. Palmer,1843.
Pages: Page 74 Page 74 Page 81 Page 81
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 slip attached 2, side 2