On the Phenomena of Variation and Geographical Distribution as Illustrated by the Papilionidę of the Malayan Region: Read March 17, 1864 (Classic Reprint) - Rilegato

Wallace, Alfred Russel

Rilegato

ISBN 10: 0656847913 ISBN 13: 9780656847914

Casa editrice: Forgotten Books, 2019

Riassunto

Excerpt from On the Phenomena of Variation and Geographical Distribution as Illustrated by the Papilionidę of the Malayan Region: Read March 17, 1864

Another striking example of the same kind is seen in the genera Rubus and Rosa, adduced by Mr. Darwin himself; for though the amplest materials exist for a knowledge of these groups, and the most careful research has been bestowed upon them, yet the various Species have not thereby been accurately limited and defined so as to satisfy the majority of botanists.

Dr. Hooker seems to have found the same thing in his study of the Arctic flora. For though he has had much of the accumulated materials of his predecessors to work upon, he continually expresses himself as unable to do more than group the numerous and apparently fluctuating forms into more or less imperfectly defined Species*.

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Dettagli dell?edizione

• Editore: Forgotten Books
• Data di pubblicazione: 2019
• Lingua: Inglese
• ISBN 10: 0656847913
• ISBN 13: 9780656847914
• Rilegatura: Copertina rigida
• Numero di pagine: 88
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