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    The Perpetuation of Living Beings; hereditary transmission and variation
    The Perpetuation of Living Beings; hereditary transmission and variation
    The Perpetuation of Living Beings; hereditary transmission and variation
    Ebook45 pages33 minutes

    The Perpetuation of Living Beings; hereditary transmission and variation

    By Thomas Henry Huxley

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    LanguageEnglish
    PublisherArchive Classics
    Release dateNov 26, 2013
    The Perpetuation of Living Beings; hereditary transmission and variation

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      Book preview

      The Perpetuation of Living Beings; hereditary transmission and variation - Thomas Henry Huxley

      The Project Gutenberg EBook of The Perpetuation Of Living Beings,

      Hereditary Transmission And Variation, by Thomas H. Huxley

      This eBook is for the use of anyone anywhere at no cost and with

      almost no restrictions whatsoever.  You may copy it, give it away or

      re-use it under the terms of the Project Gutenberg License included

      with this eBook or online at www.gutenberg.org

      Title: The Perpetuation Of Living Beings, Hereditary Transmission And Variation

             Lecture IV. (of VI.), Lectures To Working Men, at the

                    Museum of Practical Geology, 1863, On Darwin's work: "Origin

                    of Species".

      Author: Thomas H. Huxley

      Release Date: January 4, 2009 [EBook #2924]

      Last Updated: January 22, 2013

      Language: English

      *** START OF THIS PROJECT GUTENBERG EBOOK HEREDITARY TRANSMISSION ***

      Produced by Amy E. Zelmer, and David Widger

      THE PERPETUATION OF LIVING BEINGS, HEREDITARY TRANSMISSION AND VARIATION

      Lecture III. (of VI.), Lectures To Working Men, at the Museum of Practical Geology, 1863, On Darwin's work: Origin of Species.

      By Thomas H. Huxley

      The inquiry which we undertook, at our last meeting, into the state of our knowledge of the causes of the phenomena of organic nature,—of the past and of the present,—resolved itself into two subsidiary inquiries: the first was, whether we know anything, either historically or experimentally, of the mode of origin of living beings; the second subsidiary inquiry was, whether, granting the origin, we know anything about the perpetuation and modifications of the forms of organic beings. The reply which I had to give to the first question was altogether negative, and the chief result of my last lecture was, that, neither historically nor experimentally, do we at present know anything whatsoever about the origin of living forms. We saw that, historically, we are not likely to know anything about it, although we may perhaps learn something experimentally; but that at present we are an enormous distance from the goal I indicated.

      I now, then, take up the next question, What do we know of the reproduction, the perpetuation, and the modifications of the forms of living beings, supposing that we have put the question as to their origination on one side, and have assumed that at present the causes of their origination are beyond us, and that we know nothing about them? Upon this question the state of our knowledge is extremely different; it is exceedingly large, and, if not complete, our experience is certainly most extensive. It would be impossible to lay it all before you, and the most I can do, or need do to-night, is to take up the principal points and put them before you with such prominence as may subserve the purposes of our present argument.

      The method of the perpetuation of organic beings is of two kinds,—the asexual and the sexual. In the first the perpetuation takes place from and by a particular act of

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