Présentation de l'éditeur
The present little book was originally intended to be merely a reprint of Chapters XXXI to XXXVIII of the authors Fundamentals of Botany. The reprinting of those chapters was suggested by comments received from various correspondents, who pointed out that the subject matter which they cover had not been elsewhere presented in so concise a treatment in one volume, and in a manner suited, not only to beginning students, but also to more general readers. The chapter onE xperimental Evolution has received the approval of the author of the mutation theory, as being an accurate presentation of the essentials of that theory. I have especially appreciated, writes Professor de Vries, the statement of the difference between fluctuating and saltative variation, which is, to my mind, the real empirical basis for the theory, far more than the experiments on mutation with single plants. The relation of my view toD arwinism is misunderstood by many authors, and it is a great satisfaction to me that you have outlined it in such a plain way. In the preparation of the copy for reprinting, considerable new matter has been added, certain sentences and paragraphs, pertinent only to an elementary text-book, have been omitted, and others recast, and several fresh illustrations have been introduced, either as new or as substitutes.
(Typographical errors above are due to OCR software and don't occur in the book.)
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Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.
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Présentation de l'éditeur
Originally published in 1920. This volume from the Cornell University Library's print collections was scanned on an APT BookScan and converted to JPG 2000 format by Kirtas Technologies. All titles scanned cover to cover and pages may include marks notations and other marginalia present in the original volume.
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