"
[75] Key, Dr. Wilhelmina E., _Feeble-minded Citizens in Pennsylvania_,
pp. 11, 12, Philadelphia, Public Charities Assn., 1915.
[76] The most recent extensive study of this point is A. H. Estabrook's
_The Jukes in 1915_ (Carnegie Institution of Washington, 1916). The
Jukes migrated from their original home, in the mountains of New York, a
generation ago, and are now scattered all over the country. Estabrook
tried to learn, at first hand, whether they had improved as the result
of new environments, and free from the handicap of their name, which for
their new neighbors had no bad associations. In general, his findings
seem to warrant the conclusion that a changed environment in itself was
of little benefit. Such improvement as occurred in the tribe was rather
due to marriage with better stock; marriages of this kind were made more
possible by the new environment, but the tendency to assortative mating
restricted them. It is further to be noted that while such marriages may
be good for the Juke family, they are bad for the nation as a whole,
because they tend to scatter anti-social traits.
[77] Key, _op. cit._, p. 7.
[78] Figures furnished (September, 1917) by the National Committee for
Mental Hygiene, 50 Union Square, New York City.
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