- Hope Entomological Library, Oxford University Museum of Natural History: ARW 50
- Hope Entomological Library, Oxford University Museum of Natural History: ARW 50
- Marchant, J. (Ed.). (1916). In: Alfred Russel Wallace; Letters and Reminiscences. Vol. 2. London & New York: Cassell & Co. [pp. 60-61]
About Poulton's exposure of another American neo-¬Lamarckian in Nature. Criticism of Bateson's book and personal criticism of Bateson and Galton.