| Apes and Angels
Richard Edward Connell | |
| Apes and Monkeys: Their Life and Language
R. L. Garner | |
| Aphorisms and Reflections from the works of T. H. Huxley
Thomas Henry Huxley | |
| Aphrodisiacs and Anti-aphrodisiacs: Three Essays on the Powers of Reproduction
John Davenport | |
| Apis Mellifica; or, The Poison of the Honey-Bee, Considered as a Therapeutic Agent
C. W. Wolf | |
| Apocolocyntosis
Lucius Annaeus Seneca | |
| Apollo and Marsyas, and Other Poems
Eugene Lee-Hamilton | |
| Apollonius of Tyana, the Philosopher-Reformer of the First Century A.D.
G. R. S. Mead | |
| Apologia Diffidentis
O. M. Dalton | |
| Apologia pro vita sua
John Henry Newman |
