Transportation on Land 



317 



roads that were previously operated by steam is most interesting 

 and significant. The rate at which steam roads are being con- 

 verted into electrically operated roads indicates that electricity 



1 I 



MILES FROM ST. PAUL 



I i 



FIG. 98. Map and profile of the section of the Chicago, Milwaukee, and St. 

 Paul Railroad operated by electricity. Note distances and grades and compare 

 with table of elevations, page 273. 



will be made at no very distant day the chief motive force in a 

 large part of transportation. Already more than one thousand 

 miles of road, comprising over two thousand miles of track, in- 

 cluding sidings, spurs, yards, and the rest, have been electrified, 



