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From A. S. von Mansfelde 17 January 1876
Summary
Proposes an unorthodox theory of generation that explains sex determination and atavism.
Author: | Alexander Siedschlag von Mansfelde |
Addressee: | Charles Robert Darwin |
Date: | 17 Jan 1876 |
Classmark: | DAR 180: 15 |
Letter no: | DCP-LETT-10361 |
Matches: 1 hit
- … 10 But if the ovum weakened by the above mentioned circumstance takes unto itself barely enough of this organized protoplasm, we will find the warehouse, the ovary, still preparing, yet no material being left over to be stored away, the natural stimulus for the erection of the house is wanting, and instead of progressing the work regresses only a trace of the ovary is left. And we have a male Embryo . 11 The quicker therefore the contact of the ovum with the Spermatic fluid, the Stronger is the ovum and in consequence the greater is the amount of protoplasm absorbed and the result always a female offspring. 12 …