34 BULLETIN 594, U. S. DEPARTMENT OF AGRICULTURE. 
The three maps on the preceding page (maps 5, 6, and 7) show, 
through different dimensions of the circles, the per capita wheat pro- 
duction, by States, in 1871-1875, 1891-1895, and 1911-1915; 1. e., 
progress of wheat production in relation to increasing population. 
APPENDIX. 
AVERAGE FARM PRICES OF WHEAT, BY COUNTIES, 1910-1914. 
Notre.—The data which follow form the bases of maps 1, 3, and 4, and are ex- 
plained on pages 11 and 24. 
Counties have been used as the smallest effective unit of measurement, for the 
reason that the usual State prices are frequently averages for large expanses of territory 
with dissimilar physical and price conditions. The basic figures were compiled from 
returns of some 30,000 township reporters for each of the five years 1910-1914, inclu- 
sive, as of December 1. Observations for this period and for a like date of each year 
were employed to distinguish normal geographic variations from temporary deviations; 
and to further conduce thereto the price averages have been rounded to a 5-cent unit 
to overcome occasional minor differences due to such causesas local variations in grade. 
As the figures are designed to show geographic variation in prices paid to wheat 
producers, counties with little or no wheat production have been omitted (those with 
less than 500 acres in wheat, according to the 1910 census). 
Approxi- |. Approxi- 
mate mate 
State. Lain Counties. State. eli Counties. 
per per 3 
bushel bushel 
Cents. Cents. 
Alabama......-..-. 100-104 | Dekalb. California (con- 95-99 | Napa. 
Jackson. tinued). Sacramento. 
Lauderdale. San Benito. 
Limestone. San Joaquin. 
Madison. San Luis Obispo. 
SATIZONA EE Sees eee 95-99 | Graham. Solano. 
Maricopa. Stanislaus. 
= Pinal. Tulare. 
Arkansas.:......... 90-94 | Benton. 100-104 | Alameda, 
Boone. Contra Costa. 
Carroll. Los Angeles. 
Madison. Orange. 
Marion. Riverside. 
Washington. San Diego. 
95-99 | Baxter. Santa Barbara. 
Clay. Ventura. 
Fulton. Colorado...........- 75-79 | Larimer. 
Greene. Logan. 
Independence. Morgan. 
Izard. Phillips. 
Newton Sedgwick. 
Randolph Washington. 
Searcy. Weld. ‘ 
Sharp. Yuma. 
Stone. 80-84 | Adams 
California..........- 80-84 | Lassen Arapahoe 
Modoc Boulder 
85-89 | Shasta Cheyenne. 
Siskiyou Denver. 
90-94 | Butte Douglas. 
Z Colusa Elbert. 
Glenn EI Paso. 
Lake. Jefferson. 
Sutter Kit Carson. 
Yolo Lincoln. 
95-99 | Fresno 85-89 | Bent. 
Kern Conejos. 
Kings. Costilla. 
Madera, Crowley. 
Merced. Eagle. 
Monterey. Garfield. 
