The American Quarterly Journal of Agriculture and Science
Author :
Publisher :
Page : 714 pages
File Size : 49,24 MB
Release : 1846
Category : Agriculture
ISBN :
American Quarterly Journal of Agriculture and Science
Author :
Publisher :
Page : 396 pages
File Size : 49,54 MB
Release : 1845
Category : Agriculture
ISBN :
Book Description
A Catalogue of North American Diptera (or Two-winged Flies)
Author : John Merton Aldrich
Publisher :
Page : 698 pages
File Size : 11,75 MB
Release : 1905
Category : Diptera
ISBN :
Book Description
Proceedings of the Boston Society of Natural History
Author : Boston Society of Natural History
Publisher :
Page : 516 pages
File Size : 12,66 MB
Release : 1844
Category : Natural history
ISBN :
Book Description
PROCEEDINGS OF THE BOSTON SOCIETY OF NATURAL HISTORY
Author :
Publisher :
Page : 296 pages
File Size : 47,21 MB
Release : 1848
Category :
ISBN :
Book Description
Smithsonian Miscellaneous Collections
Author : Smithsonian Institution
Publisher :
Page : 928 pages
File Size : 25,62 MB
Release : 1869
Category : Mollusks
ISBN :
Book Description
Researches on the Attainment of Very Low Temperatures
Author : Morris William Travers
Publisher :
Page : 1078 pages
File Size : 49,24 MB
Release : 1905
Category : Gases
ISBN :
Book Description
Smithsonian Miscellaneous Collections
Author :
Publisher :
Page : 1064 pages
File Size : 28,89 MB
Release : 1905
Category : Science
ISBN :
Book Description
Change in Agriculture
Author : Clarence H. Danhof
Publisher : Harvard University Press
Page : 346 pages
File Size : 14,84 MB
Release : 1969
Category : Business & Economics
ISBN : 9780674107700
Book Description
American agriculture changed radically between 1820 and 1870. In turning slowly from subsistence to commercial farming, farmers on the average doubled the portion of their production places on the market, and thereby laid the foundations for today's highly productive agricultural industry. But the modern system was by no means inevitable. It evolved slowly through an intricate process in which innovative and imitative entrepreneurs were the key instruments.
Library Bulletins
Author : Columbia University. Libraries
Publisher :
Page : 460 pages
File Size : 50,97 MB
Release : 1901
Category :
ISBN :
