- E-bookLamarck, the Founder of Evolution His Life and WorkA. S. (Alpheus Spring) Packard
- E-bookOur Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and HousesA. S. (Alpheus Spring) Packard
- E-bookOur Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and HousesA. S. (Alpheus Spring) Packard