166 



ME. WILLIAM PAIRBAIBN ON THE 



TABLE V. 



GOODS TEAINS. 



Comparing the above experiments with those in Tables 

 I. and in., where the single engine is employed, a con- 

 siderable diminution of speed is observable to the weight of 

 the load carried. This is accounted for by the reduced 

 powers of the engine, which had 15 instead of 18 inches 

 cylinders, only two-thirds of the large engines. The loads 

 carried in both cases will therefore be found nearly propor- 

 tional to the powers of the engines and loads respectively. 



