Degeneracy: Its Causes, Signs and ResultsTalbot, Eugene S. (Eugene Solomon)
History
Degeneracy: Its Causes, Signs and Results
Talbot, Eugene S. (Eugene Solomon)
Abnormalities, Human; Degeneration; Heredity, Human
Kiernan has observed the case of a female cat in which brain mutilation
had been induced to secure secondary cerebro-spinal degenerations. The
mutilations were made under antiseptic precautions. The descendants of
this cat had traces of the mutilation, and its results until the fourth
generation, when the breed became extinct. This instance certainly fulfils
all Weismann requirements.
In the Lambert family a skin deformity, the last result of degeneracy in
previous generations, was transmitted. This peculiarity appeared first,
according to Proctor,[78] in the person of Edward Lambert, whose whole
body, except his face, the palms of the hands and the soles of the feet,
was covered with a horny excrescence. He was the father of six children,
all of whom as soon as they had reached the age of six weeks presented the
same peculiarity. The only one of them who lived transmitted the
peculiarity to all his sons. For five generations all the male members of
the family were distinguished by the horny excrescence which had adorned
the body of Edward Lambert.
Shwe-Maong, one of the hairless Burmese, when thirty years old had his
whole body covered with silky hairs, which attained a length of nearly
five inches on the shoulders and spine. He had four daughters, but only
one of them resembled him. She had a son who was hairy like his
grandfather. The case of this family illustrates rather curiously the
relation between the hair and teeth; for Shwe-Maong retained his milk
teeth till he was twenty (when he attained puberty); then they were
replaced by nine teeth only, five in the upper and four in the lower jaw.
Eight of these were incisors, the ninth (in the upper jaw) being a cuspid
tooth.
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