GEOGRAPHY OF WHEAT PRICES. 
83 
Map 5.— Per capita wheat production, by States, 1871-75. 
6.<3 
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Map 6.— Per capita wheat production, by States, 1891-95. 
A- \ • / 
/ajr s„j «2* ^Z^&?~ 
-^w*, _. T aU r -_£<K£_ 
1— JC 
JfJ * r, . \ 
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Map 7.— Per capita wheat production, by States, 1911-15. 
[Circles and figures within each State represent wheat production per capita, at 20-year 
intervals: 1871-75, 1891-95, and 1911-15.] 
