daughter, who married a first cousin, had one child. It would be of
great interest to know more of this last marriage, the third
generation of consanguinity in marriage, and the fourth first-cousin
marriage in three generations, but at the time the book was written
the parties were still in their early twenties.[55]

[Footnote 55: Dugdale, op. cit., Chart II.]

Mr. Dugdale makes the following "tentative inductions." 1. Boys
preponderate in the illegitimate lines. 2. Girls preponderate in the
intermarried branches. 3. Lines of intermarriage between Jukes show a
minimum of crime. 4. Pauperism preponderates in the consanguineous
lines. 5. In the main, crime begins in progeny where Juke blood
crosses X blood. (Anyone not descended from a Juke, is of "X blood").
6. The illegitimate lines have chiefly married into X.[56] The third
and fourth inductions might indicate that a lowered vitality of the
consanguineous lines changed a tendency toward crime into the less
strenuous channel of pauperism, but I cannot find in Mr. Dugdale's
charts any sufficient basis for the induction. It is true that the
most distinctively pauper line is consanguineous, but it is less
closely inbred than the "semi-successful" branch. As to the fifth
induction, a close examination of the data shows clearly that in
nearly every case where an X marriage occurred, it was with a person
of a distinctly immoral or criminal type. Cousin marriage has also
been frequent in the middle western counterpart of the Jukes, the
"Tribe of Ishmael."[57]

[Footnote 56: Dugdale, op. cit., p. 16.]

[Footnote 57: McCulloch, _Tribe of Ishmael_.]