Bulletins

Bulletins

Author: Maryland. Agricultural Experiment Station

Publisher:

Published: 1899

Total Pages: 792

ISBN-13:

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Hybrid Zones and the Evolutionary Process

Hybrid Zones and the Evolutionary Process

Author: Richard Gerald Harrison

Publisher: Oxford University Press, USA

Published: 1993

Total Pages: 378

ISBN-13: 019506917X

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Hybrid zones--geographical areas in which the hybrids of two races are found--have attracted the attention of evolutionary biologists for many years, both because they are windows on the evolutionary process and because the patterns of animals and plant variation seen in hybrid zones do notfit the traditional classification schemes of taxonomists. Hybrid zones provide insights into the nature of the species, the way barriers to gene exchange function, the genetic basis of those barriers, the dynamics of the speciation process. Hybrid Zones and the Evolutionary Process synthesizes theextensive research literature in this field and points to new directions in research. It will be read with interest by evolutionary biologists, geneticists, and biogeographers.


Bulletin

Bulletin

Author: Ohio Agricultural Experiment Station

Publisher:

Published: 1916

Total Pages: 780

ISBN-13:

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The Important Book

The Important Book

Author: Margaret Wise Brown

Publisher: Harper Collins

Published: 1990-03-10

Total Pages: 27

ISBN-13: 0064432270

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The important thing about The Important Book -- is that you let your child tell you what is important about the sun and the moon and the wind and the rain and a bug and a bee and a chair and a table and a pencil and a bear and a rainbow and a cat (if he wants to). For the important thing about The Important Book is that the book goes on long after it is closed.What is most important about many familiar things -- like rain and wind, apples and daisies -- is suggested in rhythmic words and vivid pictures. 'A perfect book . . . the text establishes a word game which tiny children will accept with glee.' -- K.


Circular

Circular

Author: United States. Dept. of Agriculture. Division of Publications

Publisher:

Published: 1906

Total Pages: 1028

ISBN-13:

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