[5] I. e. marrying cells.

[6] Here, as in many other cases, I am indebted to that invaluable repertory of facts, Dr. Havelock Ellis's "Man and Woman."

[7] This may be obtained from any bookseller at the price of 9d.

[8] Further particulars may be obtained from the Vice-Principal, King's College (Women's Department), 13 Kensington Square, London, W.

[9] From La Question Sexuelle, French edition, p. 62. The author wrote the book first in German and then in French.

[10] The modern use of the word environment really dates from Lamarck's original phrase. In his discussion of the characters of living beings, he spoke of the milieu environnant. The higher the type of organism the more comprehensive must the term become, not only quantitatively but qualitatively.

[11] "An Introduction to Social Psychology," by William McDougall, M.A., M.B., M.Sc., Wilde Reader in Mental Philosophy in the University of Oxford.

[12] From the writer's paper, "The Human Mother," in the Report of the Proceedings of the National Conference on Infantile Mortality, 1908, p. 30.

[13] It it well to quote here the most recent comment of the late Sir Francis Galton upon this subject. It is to be found in his celebrated Huxley lecture, now published by the Eugenics Education Society, together with much of the illustrious author's other work, under the title, "Essays in Eugenics." The passage relevant to our discussion runs as follows:—

"There appears to be a considerable difference between the earliest age at which it is physiologically desirable that a woman should marry and that at which the ablest, or at least the most cultured, women usually do. Acceleration in the time of marriage, often amounting to seven years, as from twenty-eight or twenty-nine to twenty-one or twenty-two, under influences such as those mentioned above, is by no means improbable. What would be its effect on productivity? It might be expected to act in two ways:—