fallacies. He also collected statistics of the deaf-mutes in Paris,
and, by an amazing manipulation of figures, "demonstrated" that
consanguinity of the parents was the cause of nearly one-third of the
cases of congenital deafness. The savants of the Société
d'Anthropologie took sides and the debate became very entertaining.
Finally M. Dally came to the rescue, and published some very sane and
logical articles which avoided both extremes, and first advanced the
theory that any ill effects of consanguineous marriage should be
attributed to the intensification of inherited characteristics.[9]

[Footnote 6: See _Transactions of the American Medical Association_,
1858, pp. 321-425.]

[Footnote 7: "Du Croisement des families," _Mem. de la Société
d'Anthropologie_, vol. i, 1860-63, pp. 505-557.]

[Footnote 8: See Morris: "On Marriages of Consanguinity," in _Amer.
Med. Times_, Mar. 23, 1861.]

[Footnote 9: See _Bulletins de la Société d'Anthropologie_, 1863, pp.
515-575; 1877, pp. 203-213.]

In England similar discussions took place during the same period,
complicated, however, by the presence of the patient and
long-suffering "deceased wife's sister." The best of the English work
has been the statistical study by George H. Darwin,[10] and the
classic "Marriage of Near Kin" by Alfred H. Huth, a book of 475 pages,
including a very complete bibliography to the date of the second
edition, 1885. Although Mr. Huth's book is not free from error, and is
encumbered with a large amount of worthless material, it is now after