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The relation of the number of temporary roots to yield in wheat
1925 | 2005
Clark, John Heriot Earle
Straw Piggery
1925
Agriculture and Agri-Food Canada | University of Lethbridge Library
A straw piggery.
Показать больше [+] Меньше [-]Pheasant
1925
Agriculture and Agri-Food Canada | University of Lethbridge Library
A pheasant sitting on an enclosure. The eggs of pheasants were hatched in different parts of southern Alberta.
Показать больше [+] Меньше [-]Poultry : Contest House
1925
Agriculture and Agri-Food Canada | University of Lethbridge Library
Poultry contest house.
Показать больше [+] Меньше [-]Killip, III | Killip, field notes, 13000 - 13989, 1925 - 1931
1925-1931
Killip, Ellsworth P. (Ellsworth Paine),
Flora of Utah and Nevada
1925
Tidestrom, Ivar
Poisonous plants photograhp collection 1907-1925
1907-1925
The Poisonous plants photograph collection contains black and white lantern slides of different species of livestock suffering from plant poisons. Most slides feature livestock that have been pooisoned and /or include scientific name of poisonous plant species, animal type, animal number, and date and time of photograph. These captions allow the viewer to follow the course of a particular animal's reaction to a plant toxin. A few slide images show landscapes. A few imoges show livestock, but do not specify a plant poisoning. Some images include charts, tables and figures related to poisonous plant research.
Показать больше [+] Меньше [-]Poisonous plants photograph collection, 1907-1925
1907-1925
The Poisonous Plants Photograph Collection contains black and white lantern slides of different species of livestock suffering from plant poisons. Most slides feature livestock that have been poisoned and/or include scientific name of poisonous plant species, animal type, animal number, and date and time of photograph. These captions allow the viewer to follow the course of a particular animal's reaction to a plant toxin. A few slide images show landscapes. A few images show livestock, but do not specify a plant poisoning. Some images include charts, tables and figures related to poisonous plant research.
Показать больше [+] Меньше [-]A study of farm organization in central Kansas
1925
Grimes, W. E. (Waldo Ernest) | Hodges, J. A. (Julian Adair) | Nichols, R. D. | Tapp, Jesse Washington
To obtain accurate and reliable information regarding the labor and material requirements of farms in central Kansas and the relations between their crop and livestock enterprises, an intensive study of the organization and operation of a number of representative farms in McPherson County, for the years 1920 to 1922, inclusive, has been made. The farmers who businesses these figures represent supplied the data. The information thus acquired forms a basis for judging the desirability of different combinations of enterprises, determining those combinations which should prove most profitable under varying price relations, and indicating ways in which efficiency in the various operations may be obtained.
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