Schenk's theory : the determination of sex / by Leopold Schenk. Authorized translation.

  • Schenk, Samuel Leopold, 1840-1902.
Date:
1898
Catalogue details

Licence: Public Domain Mark

Credit: Schenk's theory : the determination of sex / by Leopold Schenk. Authorized translation. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    ever, one hypothesis does seem to be tenable, and to that we shall find ourselves compelled to give our adhesion here, after having set forth the de- tailed explanations which shall presently follow. Now we were not led to the recognition of the truth of this teaching by previously assumed theories. On the contrary, it was after we had completed our experiments, and had been led by them to positive results, that we found ourselves compelled, in order to find an explanation of the whole process, to fall back upon the theory of cross-heredity of sex, and to place it, by our own experience, upon firmer foundations. It must be briefly remarked here that the literature of this subject is very extensive, and to trace out all the literary results would lead us too far. For which reason I have limited myself to the actual facts. In order to enter more fully into our theory, it will in the first place be necessary to turn our attention to the products of excretion which are eliminated from the bodies of animals in a more or less solid, fluid, or gaseous form as the results of the transformations of matter which have taken place in the bodies of the animals. The chemical constituents pf the evacuations are