Facts and opinions relating to the deaf from America.

Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: Facts and opinions relating to the deaf from America. Source: Wellcome Collection.

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    Cases One sister aud 1 fourtli cousin, in 2 One cousin, in 46 Two cousins, in 1 Three cousins, in 2 Five cousins, iu 1 One second cousin, in 19 One third cousin, in . . . . . . .7 Two third cousins, in 2 Three second cousins, in. . . . ... .1 Four second cousins, in . . . . . • . .1 One fourth cousin, in , . . - . . . .2 Two fourth cousins, in 1 Two second cousins and 2 fourth cousins, in . , .1 One cousin and 1 third cousin, in . . . . .1 One second cousin and 1 third cousin, in. . . .1 Two cousins and 1 nephew, iu ..... 1 One uncle, in 7 One uncle aud 2 aunts, in 1 Two uncles and 1 aunt, in ...... 1 One uncle and 1 great uncle, in . . , . .1 Two great grand-uncles, in ...... 1 One uncle and 1 niece, in 1 One great uncle, in. ....... 1 One aunt, in 2 One great aunt, in . . . . , . . . 1 Two great aunts, in ....... 1 One aunt and 2 cousins, in 1 One nephew, in 1 Two nephews and 1 niece, in 1 ' It is a very interesting and striking fact that while the 450 deaf-mutes enumerated in the foregoing statement had 770 relationships to other deaf-mutes, making a total of 1,222, that only 12 of them had deaf-mute parents and only 2 of them 1 deaf-mute parent, the mother of these having been able to hear, and that in no case was the mother alone a deaf-mute. ' Of the deaf-mutes who have been connected with the insti- tution as pupils and have left it, 272 have married deaf-mutes, and 21 have married hearing persons. These marriages have been as fruitful in offspring as the average of marriages in society at large, some of them resulting in large families of children. ■ It is interesting to know that among all these only 16 have deaf-mute childi-en. In some of the families having a deaf child there are other children who hear. These facts clearly indicate that the probability of deaf offspring from deaf parentage is remote, while other facts, set forth herein very