102 



ENGINE TESTS. 



exhaust valve leaked very badly. The load consisted of a 

 dynamo furnishing a steady current for electric lighting. 



It is evident that leakage of the valves referred to had much 

 to do with the poor showing. 



ENGINE No. 21 



80 

 60- 

 40- 

 20- 

 0- 



Head End 



Crank End 



-80 

 -60 

 -40 

 -20 

 _0 



