Directory of Field Activities of the Bureau of Plant Industry
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Page : 860 pages
File Size : 31,87 MB
Release : 1927
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Author :
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Page : 860 pages
File Size : 31,87 MB
Release : 1927
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Author :
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Page : 12 pages
File Size : 18,91 MB
Release : 1930
Category : Agriculture
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Author : Fred Campbell Meier
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Page : 842 pages
File Size : 31,84 MB
Release : 1930
Category : Agricultural experiment stations
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This publication, the thirty-first annual Directory of Officials and Organizations Concerned with the Protection of Birds and Game, follows the same general form as previous editions.
Author : Chris Lauriths Christensen
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Page : 750 pages
File Size : 36,47 MB
Release : 1927
Category : Agricultural colleges
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This publication provides a section which gives a brief description of the various offices within the United States Department of Agriculture and their functions, followed by a directory, and an Index of Names.
Author : Walter Penn Taylor
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Page : 12 pages
File Size : 18,46 MB
Release : 1930
Category : Agriculture
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Life-history data of wild mammals are essential to a proper understanding of the structure and classification of the mammal ; they are a prerequisite to a determination of the factors controlling distribution ; and they are of practical importance in problems of acclimatization and domestication. The improvement of agriculture depends to a large extent on a better and more scientific understanding of the relation of plants and animals to their surroundings. Effective conservation of the beneficial and the control of the harmful kinds of mammals depend on adequate knowledge of their habits.
Author : United States. Department of Agriculture. Division of Publications
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Page : 464 pages
File Size : 28,71 MB
Release : 1902
Category : Agriculture
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Author : Furman Lloyd Mulford
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Page : 896 pages
File Size : 22,60 MB
Release : 1930
Category : Flower shows
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The object of horticultural shows is to arouse the interest of citizens and their families in plant growth. This publication revises and supersedes Department Circular 62 "Horticultural Exhibitions and Garden Competitions," and provides a framework for organizing competitions.
Author : John Michels (Journalist)
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Page : 658 pages
File Size : 24,29 MB
Release : 1919
Category : Science
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Vols. for 1911-13 contain the Proceedings of the Helminothological Society of Washington, ISSN 0018-0120, 1st-15th meeting.
Author : Mabel Hunt Doyle
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Page : 192 pages
File Size : 25,11 MB
Release : 1927
Category : Agriculture
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Author : American Soil Survey Association
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Page : 574 pages
File Size : 40,95 MB
Release : 1922
Category : Soils
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Includes its Report of the ... annual meeting.