| |cousin marriage.
---------------------------------------
England | 104.5 | .75
France | 105.3 | 1.26
Italy | 107.0 | .69
Prussia | 105.8 | .67
U.S.[36] | 104.9 | 1.00
Jews[37] | 107.6 | 2.30
---------------------------------------

[Footnote 35: Op. cit., p. 92.]

[Footnote 36: Masculinity, _Twelfth Census, Vital Statistics_, Pt. 1.
Per cent of cousin marriage, estimated.]

[Footnote 37: Duesing, op. cit., p. 24.]

It is impossible to obtain the actual masculinity ratio for the United
States, for the Census gives the statistics for only one year in ten
and even then is untrustworthy on this point. In a few states birth
registration is attempted but the figures thus obtained do not
harmonize with the Census and the situation is not greatly
improved.[38] The masculinity varies considerably in different parts
of the country, and is generally higher in states where the rural
population predominates. This fact agrees with European statistics
which almost universally show a high masculinity in rural districts.
Table XII, illustrates this point:

TABLE XII.
_Masculinity in Scotland_.[39]