Geographical Distribution of Animals (e-bog) af Wallace, Alfred Russel

Geographical Distribution of Animals e-bog

104,11 DKK (inkl. moms 130,14 DKK)
Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The detailed study of several groups of the birds and insects collected by myself in the East, brought prominently before me some of the curious problems of Geographical Distribution; but I should hardly have ven...
E-bog 104,11 DKK
Forfattere Wallace, Alfred Russel (forfatter)
Udgivet 27 november 2019
Genrer Zoology and animal sciences
Sprog English
Format pdf
Beskyttelse LCP
ISBN 9780259679516
Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The detailed study of several groups of the birds and insects collected by myself in the East, brought prominently before me some of the curious problems of Geographical Distribution; but I should hardly have ventured to treat the whole subject, had it not been for the kind encouragement of Mr. Darwin and Professor Newton, who, about six years ago, both suggested that I should undertake the task. I accordingly set to work; but soon became discouraged by the great dearth of materials in many groups, the absence of general systematic works, and the excessive confusion that pervaded the classification. Neither was it easy to decide on any satisfactory method of treating the subject. During the next two years, however, several im portant catalogues and systematic treatises appeared, which induced me to resume my work; and during the last three years it has occupied a large portion of my time. After much consideration, and some abortive trials, an outline plan of the book was matured; and as this is, so far as I am aware, quite novel, it will be well to give a few of the reasons for adopting it.