60 Nebraska Experiment Station Research Bui. 15 
the organization of the census data would not permit the use 
of the entire area of land within a given set of boundary 
lines, it was necessary to choose a representative group of 
counties to serve as a basis for farm types.* To determine 
farm types, each item of county agricultural data was tabu- 
lated according to the representative groups of counties and 
then totaled and reduced to an average farm basis. While 
the total area of land was reduced to an average farm basis 
by using the number of all farms as a divisor, the total number 
of live stock and similar items were reduced by using the num- 
ber of farms reporting domestic animals. This avoided at 
least a part of the error that would result from distributing 
field crops, live stock, and other items to very small farms not 
belonging to the general type. Table 4 brings out the fact 
that in most cases the difference between the number of all 
farms and the number of farms reporting domestic animals 
is relatively small. 
The relative standing of winter, spring, and summer 
annuals indicated by the crop boundaries of type areas is very 
accurately shown by the average figures derived from the rep- 
resentative groups of counties. (See Figs. 36 and 37.) Both 
the boundary lines and the figures indicate that the High 
Plains area belongs to the spring-summer type of annual 
cropping, that the Western Sand Hills, Eastern Sand Hills, 
*Boyd Area — Boyd, Holt, and Kayapaha Counties. 
Buffalo Area — Buffalo, Dawson, Howard, Merrick, Nance, and Slierinan 
Counties. 
Cass Area — Cass, Dodge, Johnson, Otoe, Pawnee, Saunders, and Washington 
Counties. 
Chase Area — Chase, Dundy, and Hayes Counties, in Nebraska : Phillips and 
Yuma Counties in Colorado; Cheyenne County in Kansas. 
Custer Area — Boone. Custer. Greeley, and Valley Counties. 
Eastern Sand Hill Area — Blaine, Brown, Garfield. Loup, Bock, and Wheeler 
Counties. 
Harlan Area — Harlan. Franklin, Frontier, Furnas. Gosper. Kearney, and 
Phelps Counties in Nebraska; Graham, Mitchell, Norton. Phillips and Smith 
Counties in Kansas. 
High Plains Area— Banner, Box Butte, Cheyenne. Dawes. Kimball and Sioux 
Counties. 
Hichcock Area Hitchcock County in Nebraska; Logan. Rawlins. Sheridan and 
Thomas Counties in Kansas. 
Tbaver Area- Clay. Butler. Fillmore, Hamilton. Jefferson. Nuckolls. Polk, 
Saline, Seward. Thayer, and York Counties in Nebraska; Clay. Marshall, Republic, 
and Washington Counties in Kansas. 
Wayne Area— Cedar, Dakota. Dixon. Cuming. Knox. Madison, Pierce. Stanton, 
and Wayne Counties in Nebraska; Plymouth County in Iowa; Clay, Union and 
Yankton Counties in Sontli Dakota. 
Western Sand Hill Area Cherry, Hooker. McPherson, and Thomas Counties 
