Project Gutenberg 2015-08-24 Public domain in the USA. 81 Lenz, Fritz 1887 1976 Grundriß der menschlichen Erblichkeitslehre und Rassenhygiene (2/2) Menschliche Auslese und Rassenhygiene Grundriss der menschlichen Erblichkeitslehre und Rassenhygiene (2/2) Menschliche Auslese und Rassenhygiene Produced by Norbert H. Langkau, Reiner Ruf, and the Online Distributed Proofreading Team at http://www.pgdp.net "Grundriß der menschlichen Erblichkeitslehre und Rassenhygiene (2/2)" by Fritz Lenz is a scientific publication written in the early 20th century. This work serves as a comprehensive examination of human heredity and racial hygiene, delving into the biological and social aspects of selection within human populations. The text discusses various themes including the concepts of natural selection, fertility selection, and the implications of diseases on the human gene pool. The opening of this work introduces the topic of biological selection, explaining the existence of hereditary differences within human populations that impact reproductive success. Lenz outlines how natural selection operates in both wild and cultivated human groups, emphasizing that not all individuals reproduce equally. He introduces key concepts such as fertility selection and negative versus positive selection processes, arguing that these factors significantly shape the genetic landscape of societies. As Lenz builds his discussion, he underscores the interplay between genetic predispositions and environmental challenges, laying the groundwork for deeper examinations of human health and societal implications later in the text. (This is an automatically generated summary.) de Human genetics Ethnology Eugenics QH Text Browsing: Science - Genetics/Biology/Evolution Browsing: Sociology 827249 827253 2024-09-20T16:03:26.772412 2023-09-21T12:22:32.742171 text/html text/html 816503 2015-08-24T12:35:28 text/html; charset=utf-8 366532 2015-08-24T12:35:28 text/html; charset=utf-8 application/zip 397256 2024-09-20T16:03:40.944371 application/epub+zip 437929 2024-09-20T16:03:29.264458 application/epub+zip 387769 2024-09-20T16:03:27.930436 application/epub+zip 639152 2024-09-20T16:03:48.497298 application/x-mobipocket-ebook 659335 2024-09-20T16:03:39.771369 application/x-mobipocket-ebook 610226 2022-09-22T14:05:27.654484 application/x-mobipocket-ebook 708731 708631 2024-09-20T16:03:24.643462 2023-09-21T12:22:30.774217 text/plain; charset=us-ascii text/plain 708977 2015-08-24T12:35:24 text/plain; charset=utf-8 239750 2015-08-24T12:35:28 text/plain; charset=utf-8 application/zip 18457 2024-09-20T16:03:48.642284 application/rdf+xml 14400 2024-09-20T16:03:28.099415 image/jpeg 2807 2024-09-20T16:03:28.010426 image/jpeg 374531 2024-09-20T16:03:26.846435 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog