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The Evolution Theory, Vol. 1 of 2

By August Weismann
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About This Book

A series of university lectures presents a unified account of heredity and its place in evolution, proposing a continuous germ-plasm made of discrete hereditary determinants aggregated into higher units and arguing that selection operates on these germinal elements rather than by acquired, Lamarckian transmission. The work reviews cellular and reproductive discoveries—chromosomes, mitosis and the centrosome, fertilization, and gametic maturation—to explain reduction during gametogenesis and the mixing of hereditary material. It develops the idea of germinal selection complementing natural selection and assembles empirical and theoretical arguments into a synthetic, accessible presentation for scientifically informed readers.

About the Author

Weismann, August portrait

August Weismann

August Weismann was a prominent German biologist known for his foundational contributions to the field of evolutionary theory. He is best recognized for his work on heredity and the concept of germinal selection, which he articulated in his influential book "On Germinal Selection as a Source of Definite Variation." Weismann's theories challenged prevailing notions of inheritance and laid the groundwork for modern genetics. His two-volume work, "Studies in the Theory of Descent," further explored the mechanisms of evolution and the role of natural selection. Through his extensive research and writings, Weismann significantly shaped the understanding of biological evolution and heredity.

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Essays Upon Heredity and Kindred Biological Problems / Authorised Translation cover Essays Upon Heredity and Kindred Biological Problems / Authorised Translation by August Weismann On Germinal Selection as a Source of Definite Variation cover On Germinal Selection as a Source of Definite Variation by August Weismann Studies in the Theory of Descent (Volumes 1 and 2) cover Studies in the Theory of Descent (Volumes 1 and 2) by August Weismann Studies in the Theory of Descent, Volume I cover Studies in the Theory of Descent, Volume I by August Weismann Studies in the Theory of Descent, Volume II cover Studies in the Theory of Descent, Volume II by August Weismann The Evolution Theory, Vol. 2 of 2 cover The Evolution Theory, Vol. 2 of 2 by August Weismann

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