TABLE XXVI. -------------------------------------------------------------------------- | 1871 | 1881 | 1871 and 1881 |----------------------------------------------------------- | |Number| | |Number| | |Number| | | of |Aver | | of |Aver | | of |Aver |Number|conge-|age |Number|conge-|age |Number|conge-|age Consanguinity | of |nital |per | of |nital |per | of |nital |per of |mar- |deaf- |mar- |mar- |deaf- |mar- |mar- |deaf- |mar- Parents. |riages|mutes |riage|riages|mutes |riage|riages|mutes |riage -------------------------------------------------------------------------- First cousins | 72 | 128 | 1.78| 74 | 123 | 1.66| 146 | 251 | 1.72 Second cousins| 50 | 89 | 1.78| 29 | 46 | 1.58| 79 | 135 | 1.71 Third cousins | 24 | 40 | 1.67| 9 | 21 | 2.33| 33 | 61 | 1.85 Fourth cousins| 5 | 11 | 2.20| 1 | 1 | -- | 6 | 12 | 2.00 Fifth and | | | | | | | | | sixth cousins | 12 | 19 | 1.58| not stated | 12 | 19 | 1.58 -------------------------------------------------------------------------- Total | 163 | 287 | 1.76| 113 | 191 | 1.69| 276 | 478 | 1.73 No | | | | | | | | | relation- | | | | | | | | | ship[A] |2,842 |3,609 | 1.27|2,474 |3,229 | 1.31|5,316 |6,838 | 1.29 -------------------------------------------------------------------------- Grand total |3,005 |3,896 | 1.30|2,587 |3,420 | 1.32|5,592 |7,316 | 1.31 -------------------------------------------------------------------------- [A] See Table XXV. In Scotland Dr. Arthur Mitchell made inquiry of the superintendents of a number of deaf-mute asylums, and found that of 544 deaf-mutes, 28 were the offspring of 24 consanguineous marriages.[85] There were 504 families represented in all, so that the average per family was 1.17 among the consanguineous to 1.07 among the non-consanguineous. [Footnote 85: Huth, op. cit., p. 226.]