e absence of dominance the given character of
the hybrid usually presents a "blend" or intermediate condition between
the two parents.

DYSGENIC (bad origin), tending to impair the racial qualities
of future generations; the opposite of eugenic.

ENDOGAMY (within mating), a custom of some primitive peoples,
in compliance with which a man must choose his wife from his own group
(clan, gens, tribe, etc.).

EUGENIC (good origin), tending to improve the racial qualities
of future generations, either physical or mental.

EUTHENIC (good thriving), tending to produce beneficial
acquired characters or better conditions for people to live in, but not
tending (except incidentally and indirectly) to produce people who can
hand on the improvement by heredity.

EVOLUTION (unroll), ORGANIC, the progressive change of
living forms, usually associated with the development of complex from
simple forms.

EXOGAMY (out mating), a custom of primitive peoples which
requires a man to choose a wife from some other group (clan, gens,
tribe, etc.) than his own.

FACTOR (maker), a name given to the hypothetical _something_,
the independently inheritable element in the germ-cell, whose presence
is necessary to the development of a certain inherited character or
characters or contributes with other factors to the development of a
character. "Gene" and "determiner" are sometimes used as synonyms of
factor.

FEEBLE-MINDEDNESS, a condition in which mental development is
retarded or incomplete. It is a relative term, since an individual who
would be feeble-minded in one society might be normal or even bright in
another. The customary criterion is the inability of the individual,
because of mental defect existing from an early age, to compete on equal
terms with his normal fellows, or to manage himself or his affairs with
ordinary prudence. American students usually distinguish three grades of
mental defect: Idiots are those who are unable to take care of
themselves, even to the extent of guarding against common physical
dangers or satisfying physical needs. Their mentality does not progress
beyond that of a normal two-year-old child. Imbeciles can care for
themselves after a fashion, but are unable to earn their living. Their
mental ages range from three to seven years, inclusive. Morons, who
correspond to the common acceptation of the term feeble-minded, "can
under proper direction become more or less self-supporting but they are
as a rule