- Natural History Museum, London: NHM WP1/3/52
- Clodd, E. (Ed). (1892). In: The Naturalist on the River Amazon. London: John Murray. [pp. xxxiv-xxxv]
Bates' paper on Papilios; Darwinian philosophy, geographical distribution of species, rivers as limits to distribution, ARW's Zoological Society paper on distribution of monkey species in Brazil; isolation of species from geographical origins, geological evidence; hopes Bates will write on Cicindelidae; collecting in Sumatra; plans to return to England.