Contributions to a Short-title Catalogue of Canadiana: P1138-Z11 PDF Download
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Author: Bernard Amtmann
Publisher:
ISBN:
Category : Books
Languages : en
Pages : 244
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Book Description
Author: Bernard Amtmann
Publisher:
ISBN:
Category : Books
Languages : en
Pages : 244
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Book Description
Author: Library of Congress
Publisher:
ISBN:
Category : Subject catalogs
Languages : en
Pages : 1030
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Book Description
A cumulative list of works represented by Library of Congress printed cards.
Author: Joseph Jones
Publisher: University of Toronto Press
ISBN: 9780802087409
Category : Literary Criticism
Languages : en
Pages : 488
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Book Description
Reference Sources for Canadian Literary Studies offers the first full-scale bibliography of writing on and in the field of Canadian literary studies. Approximately one thousand annotated entries are arranged by reference genre, with sub-groupings related to literary genre.
Author:
Publisher:
ISBN:
Category : American literature
Languages : en
Pages : 616
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Book Description
Includes entries for maps and atlases.
Author: Library of Congress
Publisher:
ISBN:
Category :
Languages : en
Pages : 664
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Book Description
Author: Cary Fowler
Publisher: University of Arizona Press
ISBN: 9780816511815
Category : Science
Languages : en
Pages : 300
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Book Description
It was through control of the shattering of wild seeds that humans first domesticated plants. Now control over those very plants threatens to shatter the world's food supply, as loss of genetic diversity sets the stage for widespread hunger. Large-scale agriculture has come to favor uniformity in food crops. More than 7,000 U.S. apple varieties once grew in American orchards; 6,000 of them are no longer available. Every broccoli variety offered through seed catalogs in 1900 has now disappeared. As the international genetics supply industry absorbs seed companies—with nearly one thousand takeovers since 1970—this trend toward uniformity seems likely to continue; and as third world agriculture is brought in line with international business interests, the gene pools of humanity's most basic foods are threatened. The consequences are more than culinary. Without the genetic diversity from which farmers traditionally breed for resistance to diseases, crops are more susceptible to the spread of pestilence. Tragedies like the Irish Potato Famine may be thought of today as ancient history; yet the U.S. corn blight of 1970 shows that technologically based agribusiness is a breeding ground for disaster. Shattering reviews the development of genetic diversity over 10,000 years of human agriculture, then exposes its loss in our lifetime at the hands of political and economic forces. The possibility of crisis is real; this book shows that it may not be too late to avert it.
Author:
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ISBN:
Category : Iron industry and trade
Languages : en
Pages : 1254
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Author: David Rindos
Publisher: Academic Press
ISBN: 148326954X
Category : Technology & Engineering
Languages : en
Pages : 344
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Book Description
The Origins of Agriculture: An Evolutionary Perspective presents an alternative approach to understanding cultural variation and change. It aims to demonstrate that domestication and the origin of agricultural systems are best understood by attempting to explicate the evolutionary forces that affected that development of domesticates and agricultural systems. The book begins by discussing cultural change, the domestication of plants, and the origin of agricultural systems in the most general of terms. It considers Darwinism in some depth, concentrating on the relationship between natural selection and cultural change. Subsequent chapters examine the world of domestication and agriculture and present a series of concepts that may permit a more natural explanation for these processes. These include concepts such as incidental domestication, specialized domestication, and agricultural domestication. The final two chapters present models for the origin and spread of agricultural systems based upon Darwinian evolutionary theory.
Author: Bernard Amtmann
Publisher:
ISBN:
Category : Books
Languages : en
Pages : 228
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Book Description
Author: Bernard Amtmann
Publisher:
ISBN:
Category : Books
Languages : en
Pages : 228
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Book Description
