Breeding and the Mendelian discovery / by A.D. Darbishire ... with illustrations in colour and black-and-white.

  • Darbishire, A. D. (Arthur Dukinfield), 1879-1915.
Date:
1911
Catalogue details

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Breeding and the Mendelian discovery / by A.D. Darbishire ... with illustrations in colour and black-and-white. Source: Wellcome Collection.

    18/370 (page 2)
    2 BREEDING student of heredity would profit much by a know¬ ledge of the methods employed and the results ob¬ tained by the other. It is a question which of the two would gain most : the man of science by the knowledge of the facts relating both to the successes and the failures of the breeder ; or the breeder by an acquaintance with the principles elucidated, and the precision of the records kept and the methods employed by the man of science. It is desirable that the student of heredity should, for the sake of his science, become interested in breeding. It is desirable that the breeder should, for the sake of his art, become interested in heredity. And, in general, it is desirable that each should recognise that he has much to learn from the other ; for though, as we have seen, the objects of their work are difíerent, the problem which they are both investigating is the same. My object in writing this book is to place within reach of the practical breeder some of the things found out by the scientific student of heredity, which are likely to be of service to him. The methods of the breeder are two. They are, as a matter of fact, nearly always used in conjunc¬ tion, and not separately ; but they are neverthe¬ less essentially distinct. They are selection and crossing. Pure selection, operating on material which is not the immediate result of a cross, modifies the form of an animal or plant, and leaves it different from what it was when the selection began ; some¬ thing has been added or taken away ; something