Abstracts of Papers Read at the First International Eugenics Congress: University of London, July, 1912International Eugenics Congress (1st : 1912 : London)
Science
Abstracts of Papers Read at the First International Eugenics Congress: University of London, July, 1912
International Eugenics Congress (1st : 1912 : London)
Eugenics -- Congresses
The second pedigree exhibited is that of "Family 4" in my list. I am
indebted to another informant for the facts of this pedigree, and they
relate to another part of North America. In this case a Frenchman
(Generation A, F) married a full-blood Indian Princess, namely, a
daughter of a Chief. She had one only daughter (Generation B, 2) whose
nose was of the Indian type, but rather flat.
The daughter married an Irishman (Generation B, 1), and they had six
children. Of these three had European types of nose and three the
Indian type (Generation C, 1-6).
This family shows again an apparently clean segregation of Indian
and European types of nose. The two types appear, side by side, in
different individuals of the same fraternity.
THE SEGREGATION OF RACIAL EYE-COLOUR.
By Geo. P. Mudge.
It is a matter of importance to know the exact influence which a
mixture of races exerts upon the hereditary transmission of characters.
For instance, do the alternative characters of two races of men, when
they are related by marriage, segregate in inheritance in accordance
with Mendelian principles? Is the term "blending or fusion of races
misleading, and only accurate when employed in a qualified sense"?
It has been shown by Mr. Hurst's very careful investigations in a
Leicestershire village that certain types of human eye-colour, which
he designates as "Simplex" and "Duplex," are inherited in complete
accord with Mendelian principles of inheritance. The two types not
only segregate from each other in the course of transmission, but they
do so in practically exact Mendelian proportions. And the "Simplex"
type, which is the recessive form of eye-colour, breeds true. It begets
nothing but the Simplex eye. These results have been confirmed by
Professor and Mrs. Davenport in America. In this and similar cases we
are merely dealing with the transmission of alternative characters in
individuals of the same race.[D]
[Footnote D: Of course, the "English" race is really a community of
many commingled races. But from our present standpoint that matters
little. It is rather confirmatory of the further facts and conclusions
I am about to describe.]
But one of the interesting problems of the future is concerned with the
transmission of characters when human races of diverse characteristics
breed together. We are not concerned to discuss now whether the races
of mankind are varieties or species.
[Sidenote: K 3]
SPANIARD _v._ GIPSY.
Public-domain text, read in full here on John Shaqi.
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