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 gipsy grandmother has a very prominent type of nose. It is
characterised by three chief features: First, the broad base on
which the external narial apertures are lodged; second, the marked
convexity of the contour of the bridge; third, the well-defined or
sharp angularity of the general form. Her son's nose differs from hers
in all three of these points. His wife's nose is of the more rounded
type and differs very widely from that of the gipsy grandmother (her
mother-in-law). The three girl children of these two parents clearly
do not possess a nose like that of their grandmother. The two younger
daughters appear to resemble their mother, while the oldest appears to
be an intermediate between her mother and father. So far then there is
no feature of any special interest.
But it is otherwise when we come to deal with the nose of the son
(grandson of the old gipsy woman). For it resembles hers in all three
of the marked features which give to her nose its distinctive and
prominent form. The convexity of the bridge is, perhaps, not quite so
pronounced, but then he is still young, and this is a feature likely to
become accentuated with age.
Two features of Mendelian interest are shown in this group of a
grandmother, two parents and four grandchildren. First, there is a
hereditary transmission of nose type from grandmother to grandson.
Second, there is a clean segregation of the nose type manifested by
the brother, from the contrasted nose type or types exemplified by his
three sisters. In addition, the case is interesting since it manifests
segregation of characters in the offspring of parents of different
races, _i.e._, a gipsy and a native of the West of England.
In the absence of precise information concerning the form of nose of
the gipsy grandmother's husband, and of their five other children, and
of the brothers and sisters of the grandmother, it is difficult to
formulate a scheme showing a definite Mendelian inheritance in this
case. But the two features alluded to in the preceding paragraph are
strongly suggestive of inheritance according to Mendelian principles.
We are indebted to Mrs. Rose Haig Thomas for the general facts of this
case and for the photograph of the group.
+EUROPEAN V. AMERICAN RED INDIAN.+
[Sidenote: K 2]
Public-domain text, read in full here on John Shaqi.
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