Intracellular pangenesis, including a paper on fertilization and hybridization

Abstract

Protoplasts.§5.Nucleus and Trophoplast 144 §6.qualities of the organism, which they are possibly lack- ing.( Transportation-hypothesis )The second assumption possessed, for Darwin himself, only limited importance, in the case of plants and corals, as he considered a transportation of gemmules from one branch to another impossible.It does not apply to the workers of ants and bees, nor to the double stocks (gilli- flower) mentioned several times by Darwin.These do not possess any stamens and pistils themselves, and their characteristics must therefore be transmitted from one generation to the other through the fertile single specimens of the race.The facts, for the explanation of which the theory in question was brought forth, have gained neither in number nor in trustworthiness during the twenty years since the publication of Darwin's book.Doubts of its necessity, therefore, are quite permis- sible, and it is the chief service of Weismann to have Therefore the material bearers of hereditary charac- ters cannot be identical with the molecules of chemistry;they must be conceived of as units, built up from the latter, much larger than they, and yet invisibly small.It does not seem to me correct to apply the name mole- cule, or living molecule, to these units.This appellation must lead to confusions and misunderstandings, and I suppose it is employed only from lack of a simple desig- nation.As such a term, the name ''pangen," proposed in the Introduction (p.7), may be adopted.

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