Sex differences

The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition)

Charles Darwin

'Oh, Well, You Know How Women Are!'

Mary Roberts Rinehart
Irvin S. (Irvin Shrewsbury) Cobb

The Tinder-Box

Maria Thompson Daviess

The Descent of Man and Selection in Relation to Sex, Vol. I

Charles Darwin

Married Love

A New Contribution to the Solution of Sex Difficulties

Marie Carmichael Stopes

The Descent of Man, and Selection in Relation to Sex

Charles Darwin