2. Bell, Dr Blair. The Sex Complex. London, 1916, p. 98.

3. Paton, D. Noël. Regulators of Metabolism. London, 1913, p. 146.

4. Goodale, H.D. Gonadectomy...Carnegie Pub. 243, 1916, pp. 43f.

5. Wilson, Andrew. Polity of a Pond (essay). Humboldt Lib. of Sc.,
No. 88--reprint, dated 1888.

6. Hollingworth, L.S. Variability as Related to Sex Differences in
Achievement. Am. Jour, of Sociol., XIX., 1914, pp. 510-530.

7. Lowie, R.H. & Hollingworth, L.S. Science and Feminism. Sci. Mthly.,
Sept., 1916, pp. 277-284.

8. Montague, Helen & Hollingworth, L.S. Comparative Variability of the
Sexes at Birth. Am. J. of Sociol. XX, 335-70. 1915.

9. Morgan, T.H. A Critique of the Theory of Evolution. N.Y., 1916,
pp. 1-27.

10. Loeb, Jacques. Artificial Parthenogenesis and Fertilization.
Chicago, 1913, pp. 3, 51f., 240f, 303.

11. Conklin, E.G. Organ-Forming Substances in the Eggs of Ascidians.
U. of Pa. Contrib. from the Zool. Lab. Vol. 12. 1905, pp. 205-230.

12. Loeb, J. The Organism as a Whole. N.Y., 1916, pp. 138f, 151-2.

13. Guyer, M.F. Being Well-Born. Indianapolis, 1916, p. 51.