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.

    24/324 (page 12)
    congenital (68 per cent.) as acquired cases (32 per cent.) Hartmann, found, after having examined a number of more recent statistics, that the two groups were almost equal numerically [132, p. 204, tab. 6b] . Hartmann, however, left out of consideration the Irish statistics, which showed, and have since shown, such a remarkably large number of deaf-born as to raise the suspicion that a mistake must have been made in classifying the deaf-mutes according to the origin of their deafness. In the following table the later Irish statistics (1881) are omitted for the same reasons, 3,092 cases of congenital, and only 753 of acquired deaf-mutism, being the numbers found [149, p. 288]. In Table I. I have separated results ob- tained from census, &c., from those obtained in deaf and dumb institutions, since the information as to the origin of the deafness is arrived at by different methods. This table embraces all those statistics which have appeared since Hartmann's work was published. Table I.—Recent Statistics as to the Relative Proportion of Deaf-mutes with Congenital Deafness to Deaf-mutes with Acquired Deafness. Countries and Provinces : Pommerania, 1874-75 [i34i P- 197] • Erfurt, 1874-75 [ibid.] France, 1876 [123, p. liii.] .... Saxony, 1880 [161, p. 123] .... Prussia, 1880 [157, p. 207] .... United States, 1880 [180, p. 396] . . Scotland, 1881 [156, p. xiv.] . . . Mecklenburg-Schwerin, 1885 [210, p. 12, Norway, 1886 [203, p. gg] .... Denmark, i87g-go [see this book, p. 45] Total . Con- genital. Ac- quired. Un- certain. 592 1,031 168 99 16,127 5.268 636 649 306 9.468 7.196 11,130 12,155 10,318 11,405 1,078 1,064 217 266 33 933 885 8 226 208 iig 41,600 26,g84 :.,.Hi!Ji(WIH!IAl