—— On His Travels. Penn Monthly, by R. E. Thompson, vol. 2, 1871, pp. 562-572.

—— On Orchids.

—— Origin of Species.

—— —— Agassiz’ Views of the Origin of Species. Proceedings of Literary and Philosophical Society of Liverpool, by C. Collingwood, No. 15, 1861, pp. 81-99.

—— —— A Characterisation of the Origin of Species. Journal of Science, by Oswald Dawson, vol. 7, 3rd Ser., 1885, pp. 441-458.

—— —— Criticisms on the Origin of Species. Natural History Review, by T. H. Huxley, vol. 4, 1864, pp. 566-580; reprinted in Lay Sermons, 1870.

—— —— Coming of Age of the Origin of Species. Nature, by T. H. Huxley, vol. 22, 1880, pp. 1-4;
same article, Popular Science Monthly, vol. 17, 1880, pp. 337-344.