BULLETIN 389, U. S. DEPARTMENT OF AGEICULTUEE. 



PER CENT 



eo 



30 



40 



80 



ARIZONA - 

 CALIFORNIA 

 COLORADO - 



IDAHO 



ILLINOIS- 

 INDIANA-— 



IOWA- 



KAN3AS— 

 MICHIGAN- 

 MINNESOTA 

 MISSOURI— 

 MONTANA- 

 NEBRASKA 

 NEVADA— 

 N. MEXICO - 

 N.DAKOTA- 



OHIO- 



OREGON- 



S.DAKOTA 



UTAH — 



WASHINGTON- 



i 



1904 

 1909 

 1914 



1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 



1904 



1909 



1914 



1904 



1909 



1914 



1904 



1909 



1914 |i 



1904 



1909 i 



(914 P 



1904 



1909 



1914 



1904 



1909 



1914 



1904 

 1909 

 1914 



1904 I 



1909 I 



1914 



1904 



1909 



1914 



1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 



WISCONSIN- 



WYOMING- 



1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 

 1904 

 1909 

 1914 



:::;:3iiiiii 



Fig. 1. — Percentage of surfaced roads in the respective States. 



