334 



REPORT — 1902. 



If we take 100 as the power necessary to draw the vehicle with pneu- 

 matics, then we get : — 



On good pavement witli mud sliglitly sticky 



Upon bad jjavement, dry , 

 »» ii i» 



1» H i) 



Good regular pavement, dry 



Pneumatics = ] 00 



Iron wheels = 13G-7 



Solid rubber = 130-7 



I'neumatics = 100 



Iron wheels = 150 



Solid rubber = 143 



Pneumatics = 100 



Iron wheels = 123 



)Solid lubber = 127 



These results again show the great advantage of pneumatic tyres in 

 all cases. 



Fig. 5.— Fourth Series of Trials (January 18'J6). 



