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Updated: May 22, 2025
This is traditional progress something outside the germ-plasm; a thing dependent upon our great human faculty of speech. That, surely, is why the word infantine was rightly used in our first paragraph. For we may ask why, if man be millions of years old, any record of progress should be a matter of only a few thousand years perhaps not more than fifteen or twenty.
Here there must be scattered through the leaves of the plant small portions of germ-plasm, which generally remain dormant, and only under special conditions increase and give rise to germ-cells. A large part of the germ-plasm of the fertilized egg is used to give rise to the somatoplasm composing the different systems of the embryo and adult.
While by the second "the germ-cells are no longer looked upon as the product of the parent's body, at least as far as their essential part the specific germ-plasm is concerned; they are rather considered as something which is to be placed in contrast with the tout ensemble of the cells which make up the parent's body, and the germ-cells of succeeding generations stand in a similar relation to one another as a series of generations of unicellular organisms arising by a continued process of cell-division."
Observing the familiar facts of our own lives and of the higher forms of life, both animal and vegetable, with which we are acquainted, we must naturally at first incline to regard as worse than paradoxical the modern biological concept of the individual as existing for the race, of the body as merely a transient host or trustee of the immortal germ-plasm.
By their effects upon the endocrines, public health influences like food, clothing, sleep and overpressure and last but not least, disease, the so-called diseases of childhood, possess a tremendous importance in limiting the output of the educable. They act to subtract from and so to lower the rating, the capacity of the germ-plasm.
Weismann indeed attempts to solve this riddle through his germ-plasm theory, the predisposition of the future organism in the “ids,” determinants, and biophors, and through the variation of the determinants in germinal selection, amphimixis and so on.
This aptitude would have remained inherent in the germ-plasm which the individual bears within him, as it was in the individual himself and consequently in the germ whence he sprang.
People who live in glass houses can see the stars especially when there's a window-washing streak in their germ-plasm." "Gussy, why don't you move underground?" Fay asked, his voice taking on a missionary note. "It's a lot easier living in one room, believe me. You don't have to tramp from room to room hunting things." "I like the exercise," Gusterson said stoutly.
We will be able to understand his theory better from the following quotations, which give his own words. He says: "I have called this substance 'germ-plasm, and have assumed that it possesses a highly complex structure, conferring upon it the power of developing into a complex organism."
There is, indeed, one point on which both those who affirm and those who deny the transmissibility of acquired characters are agreed, namely, that certain influences, such as that of alcohol, can affect at the same time both the living being and the germ-plasm it contains.
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