Alfred Russel Wallace

Alfred Russel Wallace's field notebooks from the Malay Archipelago, kept from 1854 to 1862 and held mainly at the Natural History Museum and the Linnean Society, record specimens, local helpers and ideas about species. His assistant Ali, from Sarawak, collected alongside him for years. The notebooks have been digitised and his letters published by the Wallace Correspondence Project, showing the independent route by which he reached natural selection.