P. 132. INHERITANCE.--Darwin, _Animals and Plants under Domestication_, pp. 42, 473; Sir Henry Holland's _Medical Notes and Reflections_, p. 30; Pritchard, _Researches into the Physical History of Mankind_, vol. ii. p. 551; Carpenter, _Human Physiology_, p. 779; A. Debay, _Hygiène et Physiologie du Mariage_, p. 173; Fleurens, _De la Longévité et de la Quantie de Vie sur le Globe_, p. 256 (Paris, 1860); Hufeland, _Art of Prolonging Life_, pp. 91, 206; Hammond's _Hygiene_, p. 116; _American Journal of Medical Sciences_, July, 1865, p. 82; Francis Galton, _On Hereditary Talent and Character_, in _Macmillan's Magazine_, vol. xii. pp. 157, 318; Madden, _The Infirmities of Genius_, vol. ii. p. 107; _Lancet_, December 22, 1868, p. 825; _The British Medical Journal_, January 11, 1868, p. 25; Dr. Prosper Lucas, _Traité de l'Hérédité Naturelle_; Victor Hugo, _L'Homme qui Rit_, le seconde chapitre préliminaire; Watson's _Practice_, p. 1153; Dr. Daniel G. Brinton, _Guide-Book to Florida and the South_, Pt. iii.; Dr. J. V. C. Smith, _Physical Indications of Longevity in Man._ P. 163. PLURAL BIRTHS.--Duncan, _Fecundity, Fertility, and Sterility_, p. 69; Ramsbotham, _System of Obstetrics_, p. 461; _Philadelphia Medical and Surgical Reporter_, vol. xix. p. 508, xx. p. 98. P. 167. PREGNANCY.--Menville, i. p. 299; Dr. Gunning S. Bedford, _System of Obstetrics_, p. 144 et seq.; Montgomery, _Signs and Symptoms of Pregnancy_; Dr. Edward Rigby, _System of Midwifery_, p. 47. P. 180. MOTHERS' MARKS.--See a very interesting article by Professor Wm. A. Hammond, in _The Quarterly Journal of Psychological Medicine and Medical Jurisprudence_, January, 1868, p. 1, in which he says, in regard to the influence of the maternal mind over the fœtus _in utero_: 'The chances of these instances, and others which I have mentioned, being due to coincidence, are infinitesimally small; and though I am careful not to reason upon the principle of _post hoc ergo propter hoc_, I cannot--nor do I think any other person can, no matter how logical may be his mind--reason fairly against the connection between cause and effect in such cases. The correctness of the facts only can be questioned: if these be accepted, the probabilities are thousands of millions to one, that the relation between the phenomena is correct.' See also Dr. J. Lewis Smith, _Diseases of Infancy and Childhood_, 1869, p. 21; _Philadelphia Medical and Surgical Reporter_, vol. xix. p. 359. Pp. 192-197. CONCURRENT PREGNANCIES.--Raciborski, _De la Puberté_, etc., p. 491; Dr. Gunning S. Bedford, _System of Obstetrics_, p. 442; _Dict. des Sciences Médicales_, t. L. iii.; _Lancet_, August, 1856, p. 131; Carpenter, _Human Physiology_, p. 779; Beck's _Elements of Medical Jurisprudence_, art. 'Superfœtation;' Rokitansky, _Pathological Anatomy_; _Philadelphia Medical and Surgical Reporter_, May 1, 1869, p. 335.--Professor Pancost removed some years since, from the cheek of a child some months old, a rudimentary second child.