Macculloch, John. Darwin's ms notes on Macculloch's Attributes of Deity, 1839(?)

Vigors to Stanley letter

Derby to Swainson letter

Peacock to Sedgwick letter

Peacock re Romilly letter

Forbes (1854)

Owen (1858)

Owen 1859

Wallace (1855)

Wallace (1858)

MendelWeb

British Museum (Natural History) Library

Lyell