SPRING WHEAT ON THE NORTHERN GREAT PLAINS. 
41 
Table XVIII. — -Average bushel weight of 38 varieties of spring wheat grown at 11 
experiment stations in the northern half of the Great Plains area during three or more of 
the seven years from 1913 to 1919, inclusive, compared with the Marquis variety for the 
same station years. 
<* 
Durum wheats are heavier than common spring wheats grown 
under the same conditions, and in addition to their greater specific 
gravity they also are less injured by drought and rust. Arnautka 
(C. I. No. 1493), Kubanka (C. I. No. 1516), and Acme show the 
highest bushel weights as compared with Marquis. 
MILLING AND BAKING EXPERIMENTS. 
The leading varieties of spring wheat grown at the 11 experiment 
stations in the northern half of the Great Plains area have been 
milled in an experimental mill and the flour baked into bread, to 
determine their value for flour and bread making. When possible, 
samples from all stations have been milled each year from 1915 to 
1918, inclusive. In addition, samples grown at Dickinson, N. Dak., 
in 1913 and 1914, are included. The milling and baking experiments 
were conducted in cooperation with the Office of Grain Standardiza- 
tion from 1913 to 1917, inclusive. During these years the milling 
laboratory was operated at Fargo, N. Dak., in cooperation with the 
chemistry department of the North Dakota Agricultural Experiment 
