- Hope Entomological Library, Oxford University Museum of Natural History: ARW 08
- Hope Entomological Library, Oxford University Museum of Natural History: ARW 08
- Marchant, J. (Ed.). (1916). In: Alfred Russel Wallace; Letters and Reminiscences. Vol. 1. London & New York: Cassell & Co. [pp. 44-45]
Returning Weismann proofs. Mentions an old paper of his "The Action of Natural Selection in Producing Old Age, Decay and Death" written 20 years earlier. Excellent reply by Thiselton-Dyer to Romanes.