- Contributions to the theory of natural selection, a series of essays by Alfred Russel Wallace1
- Creation or evolution?1
- Creation or evolution?: a philosophical inquiry by George Ticknor Curtis1
- Darwinism illustrated, wood-engravings explanatory of the theory of evolution, selected and drawn under the direction of Prof. George J. Romanes1
- Discours sur les révolutions de la surface du globe, et sur les changemens qu'elles ont produits dans le règne animal par M. le Baron G. Cuvier1
- Dog approaching another dog with hostile intentions, by Mr. Riviere. The same in a humble and affectionate frame of mind, by Mr. Riviere1
- Domestic pigs: their variation1
- Dr. Asa Gray, 18671
- Drosera rotundifolia1
- Embryonic development1
- English barb1
- English carrier1
- English pouter1
- Essays in eugenics by Sir Francis Galton1
- Eugenics, scientific generation of human offspring: principles and material basis of heredity and prenatal influence by Henry W. Friedhoff1
- Eugenics, the science of human improvement by better breeding by C.B. Davenport1
- Eugenics, vol. III, nos. 3 & 4, May-June, 19091
- Evidences of the truth of evolution. Proofs from embryology1
- Evidences of the truth of evolution. Proofs from homologies1
- Evolution from a scientific standpoint by John Pope Stewart1