992 



ANNUAL REPORT OF THE 



Off. Doc. 



o 

 .Q 



o o 



Narrow tires, 



Broad tires 



Difference in favor of broad tires, 

 Percentage difference 



472.6 

 422.» 



49.6 



(k) Clay road. Dry on top. Spongy underneath. Ruts in road 

 before making trial, about 8 inches deep. Both sets of wheels run 

 in the old ruts, narrow tires first. Ruts about 5 inches deep afteh 

 broad wheels had passed over them once. Trial made February 24, 

 1896. Length of runs 400 feet. 



o 

 .o 



OJ o 



Narrow tires 



Broad tires 



Difference in favor of broad tires 

 Percentage difference 



S95.8 



377.4 



218. 4 



57.9 



(1) Clay road. Dry on top. Soft underneath. Three trials, the 

 narrow and broad tire alternating over the same course and in the 

 same track. Length of runs 400 feet. March 20, 1897. 



