Reproduction
Free to read here, from Project Gutenberg.
The Works of Aristotle the Famous Philosopher
Essays Upon Heredity and Kindred Biological Problems
The Biology, Physiology and Sociology of Reproduction
The Natural Philosophy of Love
The Renewal of Life; How and When to Tell the Story to the Young
Physique de l'Amour: Essai sur l'instinct sexuel
The price of eggs
