Effect of Climate and Soil upon Agriculture 3 
conformation has now reached a stage where the organization of 
farm business may be used as a measure of the effective value of 
climate and soil. 
Fic. 2. Soil fertility the limiting factor in the east and similar agricultural 
regions. 
Artificial factors in Nebraska are distributed almost directly 
- proportional to the people. In fact, the relation between the two 
is so close that it would appear that each individual carried a unit 
charge of that force necessary to produce what is termed artifi- 
cial. This is well illustrated by the distribution of our towns and 
railroads; also by the variation in the size of our congressional 
districts and counties. If the relation between natural factors, 
artificial factors, and people were not so close the analysis of the 
various effects of climate and soil in this state would be more 
difficult. 
During the past three years (1913-1916) Farm Management 
Surveys have been conducted in Merrick, Fillmore, Gage, Seward, 
93 
