—— and Pangenesis. Scientific Opinion, vol. 2, 1869, pp. 365-367, 391-393, 407, 408.

—Quarterly Journal of Science, vol. 5, 1868, pp. 295-313.

—— Pangenesis as applied to the faculty of memory. Journal of Anthropology, by Alfred Sanders, Oct. 1870, pp. 144-149.

—— and Philosophy. Contemporary Review, by Sir A. Grant, vol. 17, 1871, pp. 275-281;
same article, Littell’s Living Age, vol. 109, 1871, pp. 626-631.

—— e la Filosofia del Secolo XIX. Rivista Europea, by C. Bizzozero, vol. 29, 1882, pp. 5-34.

—— and Spencer, Huxley, and Tyndall. Dickinson’s Theological Annual, by George B. Cheever, 1875, pp. 418-441.

—— Animals and Plants under Domestication. Boston Review, by C. R. Bliss, vol. 9, 1869, pp. 453-462.

—— Answered. Penn Monthly Magazine, vol. 6, 1875, pp. 368-372.

—— as a Botanist. Smithsonian Miscellaneous Collections, by Lester F. Ward, vol. 25, 1883, pp. 81-86.