On our knowledge of the causes of the phenomena of organic nature, by T.H. Huxley

Table of Contents

Notice to the First Edition.


  1. The Present Condition of Organic Nature.
  2. The Past Condition of Organic Nature
  3. The Method by which the Causes of the Present and Past Conditions of Organic Nature Are to Be Discovered. — the Origination of Living Beings
  4. The Perpetuation of Living Beings, Hereditary Transmission and Variation
  5. The Conditions of Existence as Affecting the Perpetuation of Living Beings
  6. A Critical Examination of the Position of Mr. Darwin’s work, “On the Origin of Species,” in relation to the complete theory of the causes of the Phenomena of Organic Nature


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