Modes of research in genetics / by Raymond Pearl.

  • Raymond Pearl
Date:
1915
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Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Modes of research in genetics / by Raymond Pearl. Source: Wellcome Collection.

    21/204 page 9
    A CRITICAL EXAMINATION 9 possible practically to delimit either category precisely, and, for present purposes certainly, this is not necessary. We may now turn to the second division of our program. II. Methods of Research in Genetics 1. The Biometrie. The biometrie mode of attacking the problem of heredity owes its inauguration to the late Sir Francis Galton, and its great development to Professor Karl Pearson. Galton was the first to perceive the importance of dealing with heredity on a statistical basis. As Pearson has well said, the recognition of this fact was one of the greatest services of Francis Galton to biometry. Merz ^ has pointed out that Galton in his own mind sharply separated the problem of heredity into two parts, the one having to do with the material basis of hereditary phenomena, the other with the phenomena themselves. His early experi¬ ments dealt with the first of these problems. By means of blood transfusion he hoped to test and further develop Darwin's theory of pangene¬ sis. Certain now obvious technical difficulties of dealing experimentally with the problem in this way undoubtedly had much to do with turning Galton to the study of the other phase, towards ^ Merz, j. T. A History of European Thought in the Nine¬ teenth Century, Vol. ii, p. 613, 1903.
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