[61] Natural History Museum, central hall, third recess on the left.

[62] Traité de l'Hérédité, ii. 489; Variation of Animals and Plants under Domestication, i. 469. If injuries are inherited, why has the repeated rupture of the hymen produced no inherited effect?

[63] Compare the three cases of crooked fingers given in Variation of Animals and Plants under Domestication, ii. 55, 240.

[64] Ibid., i. 460. Thus, where two brothers married two sisters all the seven children were perfect albinos, although none of the parents or their relatives were albinos. In another case the nine children of two sound parents were all born blind (ii. 322).

[65] See pp. 179-182, Evolution and Disease, by J. Bland Sutton, to whom and to our mutual friend Dr. D. Thurston I am indebted for information on various points.

[66] Variation of Animals and Plants under Domestication, ii. 290; i. 454.


MISCELLANEOUS CONSIDERATIONS.

TRUE RELATION OF PARENTS AND OFFSPRING.