Orchids
On the Various Contrivances by which British and Foreign Orchids are Fertilised by Insects, and on the Good Effects of Intercrossing. London: J. Murray, 1862.
First edition. This work on orchids, which fascinated Darwin, may be seen as a case study for his On the Origin of Species. Annotated proof copy, with corrections in the hand of the author.
Gift of Robert B. Honeyman, 1920