02365cam a22003133u 45000010005000000030007000050050017000120060002000290070005000310080041000360400011000770410017000880500007001051000037001122450209001492640051003583000047004093360026004563370026004823380036005085000031005445080048005755201243006235340045018666530024019116530057019358560042019929990017020342924UtSlPG20260610133105.0mcr n260607r2001||||utu|||||o|||||||||||||| d  aUtSlPG 7aen2iso639-1 4aQH1 aHuxley, Thomas Henry,d1825-189514aThe Perpetuation of Living Beings, Hereditary Transmission and Variation :bLecture IV. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" 1aSalt Lake City, UT :bProject Gutenberg,c2001  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aRelease date is 2001-11-01  aProduced by Amy E. Zelmer, and David Widger  a"The Perpetuation of Living Beings, Hereditary Transmission and Variation" by Thomas Henry Huxley is a scientific publication written in the late 19th century. The book explores the complex phenomena of reproduction, heredity, and variation in living organisms, delving into both asexual and sexual modes of perpetuation. It aims to understand how living beings pass on their traits and how variations arise within species.  In this work, Huxley discusses the two primary modes of reproduction: asexual, where organisms reproduce without the involvement of specialized sexes, and sexual, which involves the combination of male and female gametes. He illustrates how offspring generally inherit traits from their parents, a phenomenon he refers to as "atavism," while also emphasizing the role of variation and the influence of external conditions on genetic change. Through various examples, including the breeding of domestic animals and specific cases of spontaneous variation, Huxley demonstrates how both heredity and environmental factors contribute to the diversity of forms in the natural world, thereby laying foundational ideas for understanding evolution and the continuity of life. (This is an automatically generated summary.)  nOriginal publication data not identified  aEvolution (Biology)  aDarwin, Charles, 1809-1882. On the origin of species40uhttps://www.gutenberg.org/ebooks/2924  c44998d44998