Note 16 — Chapter III · ToC
Reading edition
So deep-rooted has been this opinion of female inferiority that it has formed the basis of many theories of sex. Thus Richarz holds that "the male sex represents a higher grade of development in the embryo." Hough thinks males are born when the female system is at its best, females in periods of growth, reparation, or disease. Tiedman and others regard females as an arrested male, while Velpau, on the other hand, believes them to be degenerated from primitive males. See Geddes and Thomson, Evolution of Sex, p. 39.