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Author : C. R. Osten Sacken
Publisher : Unknown
Page : 240 pages
File Size : 42,9 Mb
Release : 1903
Category : Electronic
ISBN : OCLC:562113700
Author : Carl Robert Osten-Sacken
Publisher : Unknown
Page : 240 pages
File Size : 45,6 Mb
Release : 1903
Category : Diptera
ISBN : LCCN:agr03001080
Author : Carl Robert Osten Sacken
Publisher : Kessinger Publishing
Page : 32 pages
File Size : 53,6 Mb
Release : 2009-06
Category : Literary Collections
ISBN : 1104613417
This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Author : Carl Robert Osten Sacken
Publisher : Forgotten Books
Page : 270 pages
File Size : 53,8 Mb
Release : 2018-02-23
Category : Biography & Autobiography
ISBN : 0484827219
Excerpt from Record of My Life Work in Entomology This Introduction was first printed as a separate pamphlet by the Cam bridge (england) University Press, and was dated January 30, 1901. This second edition is a reprint of the first, and the principal change introduced consists in the mode of reference to the Chapters on various subjects which, instead of being distributed among the items of the List of my publications (an arrangement that I had announced in the Prospectus of my Record published in June, appear now collected in Part II. The reason for this change will be found explained in the Preface of that Part. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : Carl Robert von Baron Osten-Sacken,Kenneth G. V Smith
Publisher : Unknown
Page : 128 pages
File Size : 44,9 Mb
Release : 1978-01-01
Category : Electronic
ISBN : 0785506721
Author : Carl Robert Osten-Sacken
Publisher : Unknown
Page : 40 pages
File Size : 52,7 Mb
Release : 1901
Category : Entomologists
ISBN : HARVARD:32044107217200
Author : United States. Department of Agriculture
Publisher : Unknown
Page : 598 pages
File Size : 49,9 Mb
Release : 1906
Category : Electronic
ISBN : MINN:31951P00761366J
Author : Anonim
Publisher : Unknown
Page : 740 pages
File Size : 54,7 Mb
Release : 1895
Category : Beneficial insects
ISBN : CORNELL:31924018374862
Author : Carl Robert Osten-Sacken
Publisher : Unknown
Page : 660 pages
File Size : 55,6 Mb
Release : 1858
Category : Entomology
ISBN : CORNELL:31924018273452
Author : Carl Robert Osten-Sacken
Publisher : Unknown
Page : 40 pages
File Size : 52,7 Mb
Release : 1902
Category : Entomologists
ISBN : HARVARD:32044107217291
Author : Willis Conner Sorensen
Publisher : University of Alabama Press
Page : 388 pages
File Size : 48,8 Mb
Release : 1995
Category : Science
ISBN : 0817307559
Draws together information from diverse sources to illuminate an important chapter in the history of American science Sorensen asks how it came about that, within the span of forty years, the American entomological community developed from a few gentlemen naturalists with primary links to Europe to a thriving scientific community exercising world leadership in entomological science. He investigates the relationship between American and European entomology, the background of American entomologists, the implications of entomological theory, and the specific links between 19th-century American society and the rapid institutional growth and advances in theoretical and applied entomology. By the 1880s the entomologists constituted the largest single group of American zoologists and the largest group of ecologists in the world. While rooted in the British natural history tradition, these individuals developed a distinctive American style of entomological investigation. Inspired by the concept of the balance of nature, they excelled in field investigations of North American insects with special emphasis on insect pests that threatened crop production in a market-oriented agriculture. During this period, entomologists described over ten times as many North American insect species as had been previously named, and they consolidated their findings in definitive collections. Employing evolutionary theory, they contributed to the growing understanding of insect migration, mimicry, seasonal dimorphism, and the symbiotic relationship of plant and animal species. Americans also led in the revision of insect taxonomy according to the new principles. Their employment of entomological findings in the practical control of agricultural pests set new standards worldwide. Initially ridiculed as eccentric bug hunters, American entomologists eventually achieved stature as agricultural advisers and as investigators into the origin and nature of life. Based primarily on the correspondence of American entomologists, Brethren of the Net draws together information from diverse sources to illuminate an important chapter in the history of American science.
Author : United States. Department of Agriculture. Library
Publisher : Unknown
Page : 492 pages
File Size : 52,8 Mb
Release : 1905
Category : Electronic
ISBN : OSU:32435065390171
Author : United States. Department of Agriculture. Library
Publisher : Unknown
Page : 914 pages
File Size : 53,8 Mb
Release : 1902
Category : Electronic
ISBN : WISC:89048630867
Author : United States. Department of Agriculture. Library
Publisher : Unknown
Page : 852 pages
File Size : 40,6 Mb
Release : 1905
Category : Electronic
ISBN : HARVARD:HX1FXU
Author : Gyuri Csóka
Publisher : Unknown
Page : 340 pages
File Size : 52,9 Mb
Release : 1998
Category : Entomology
ISBN : MINN:31951D03000001T
