6 
Nebraska Experiment Station Research Bui. 15 
termine certain types and subtypes. The Sand Hill and Level 
Loess areas in this State serve as illustrations. For each 
type area the type of farm, as it existed in 1909, has been 
calculated. The facts concerning the various farm types have 
been grouped about as follows: 
1. Size of farm. 
2. Use of land. 
Crop groups. 
Total yields. 
Yields per acre. 
Value of plant 
growth. 
Crop indexes. 
3. Live stock. 
Kinds. 
Productive stock. 
Work animals. 
Live-stock returns. 
4. Labor. 
5. Capital. 
6. Classes of operators. 
The principal object of this work is to correlate in a 
measured way a number of important facts concerning farm 
types. The work, it will be seen, is by no means final. The 
material prepared during short intervals in the past two 
years is published here simply as a progress report. 
THE OUTLINE OF AGRICULTURAL REGIONS IN THE NORTHERN 
HEMISPHERE 
North America has two large agricultural regions. One 
of these regions centers in Washington, Oregon, and Cali- 
fornia, and the other in the eastern part of the United States 
and southern Canada. Eurasia also has two such regions 
similarly located. One is occupied in part by Great Britian, 
France, Germany, Austria, and east-central Russia, and the 
other in part by China Proper, Manchuria, and Japan. The 
climate of each of these regions is to a large extent deter- 
mined by the westerly winds.* Land located along western 
coasts receives the westerlies fresh from the ocean while that 
located along eastern coasts receives these winds only after 
they have crossed more or less of the interior of the land mass. 
Climate within the belt of the westerlies ranges from 
oceanic to continental. Naturally the truest types of oceanic 
climate in this belt of winds are found on western coasts. 
•The climate of southeastern North America and Eurasia Is to an extent 
affected by the trade winds. 
