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Thirteenth census of the United States
1912
Hunt, William Chamberlin
The F₁ heredity of size, shape, and number in tomato fruits
1912
Groth, B. H. Alfred (Benno Humbert Alfred)
Superintendent's House
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
Superintendent's house, showing the wrap around balcony. Barn in left background.
显示更多 [+] 显示较少 [-]Digging A Root Cellar
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
Men and horses digging a root cellar on the Lethbridge Experimental Farm. Trees and hay pile in the background.
显示更多 [+] 显示较少 [-]Dry Farming Congress
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
A traction power demonstration at Dry Farming Congress. Rear view of men sitting on plows behind the tractor.
显示更多 [+] 显示较少 [-]Dry Farming Congress
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
A traction power demonstration at Dry Farming Congress. Side view of men on plows behind the tractor.
显示更多 [+] 显示较少 [-]The "Mixed Farming Special" Train
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
A group of men standing beside the "Mixed Farming Special" train
显示更多 [+] 显示较少 [-]The Caterpillar Engine
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
The Caterpillar Engine at the Dry Farming Congress, Lethbridge. Front view of the engine. Another engine and men are in the right background.
显示更多 [+] 显示较少 [-]Ox Team and Plow
1912
Agriculture and Agri-Food Canada | University of Lethbridge Library
An ox team pulling a plow with a man on it. An automobile with three people is on the right.
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