Deaf-mutism / by Holger Mygind.

  • Mygind Holger, 1855-1928.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Deaf-mutism / by Holger Mygind. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    among the remote causes of deaf-mutism. Of these the following are deserving of attention. Great Ntimber of Children.—All authors who have directed their attention to this subject agree that marriages producing deaf-mutes are remarkable for their fertility. Thus, Wilhelmi found in Magdeburg that the average number of children born in each marriage producing congenital deaf-mutes was 5-09, and 5-63 in each marriage producing deaf-mutes with acquired deafness [108, p. 76 and 82]. The same author found in Pommerania and Erfurt 5-9 children in each marriage in the first mentioned group [134, p. 208]. From investigations in Mecklenburg- Schwerin Lemcke found 5-63 children in each marriage producing deaf-mutes [210, p. 83]. The greatest fertility was reached in Saxony, viz., six children in each marriage in which deaf-mutes were born [H. Schmaltz, 161, p. 131]. Saxony is, however, ac- cording to H. Schmaltz, remarkable for the great number of children born in each marriage. The 514 marriages in which the 553 Danish deaf-mutes were born produced altogether 2,467 children, i.e., on an average, 4-8 in each. In the 197 marriages producing congenital deaf-mutes 985 children were born, i.e., 5-0 in each; in the 206 marriages producing deaf-mutes with acquired deafness 943 children were born, i.e., 4-6 in each. Although this fertihty is less than that found elsewhere—which is explained when we re- member that the Danish deaf-mutes were generally younger at the time of the investigations than those included in other statistics—it is still high when com- pared with that of the population in general. Mygge,
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