80 FARM GRASSES OF THE UNITED STATES 
according to the census of 1900. In counties having 
from 500 to 1,500 acres, a small dot was placed; two 
small dots were placed in counties having from 1,500 
to 2,500 acres, and so on. ‘The border of the real 
Timothy Region is thus seen to traverse central Dela- 
ware and central Maryland. It includes in the timo- 
thy region the mountainous parts of Virginia, a small 
portion of northwestern North Carolina and of north- 
eastern Tennessee. Southwestern West Virginia is 
excluded. Thence the line runs irregularly through 
northern Kentucky, southern Illinois, and southern 
Missouri. ‘Thence it runs northward, including one 
tier of counties in southern Kansas and three tiers in 
the north, and cutting across the southeast corner of 
Nebraska. It then follows the west line of Iowa, 
nearly to Minnesota, after which it takes an irregular 
course across Minnesota and Wisconsin. Timothy 
does very well in the eastern parts of Kansas, Ne- 
braska, and the Dakotas, but the enormous quantities 
of wild hay cut in those States (see Fig. 3) renders 
timothy comparatively unimportant there. A few 
large dots, scattered here and there near the border 
line, and quite generally in the Northern Rocky 
Mountain and Pacific Coast States, indicate centres in 
which timothy is more or less important. South and 
west of this border line timothy is of little impor- 
tance, with the exceptions noted. It cannotstand the 
summer climate of the South, nor the arid or semi-arid 
conditions of the West. North aud east of this line it 
has heretofore been the one great hay grass. Outside 
of it, it will, for the most part, thrive only under the 
most favorable conditions. In the Northwest the su- 
