ENGINE No. 31. 



127 



engine was employed in driving a line-shaft to which were 

 belted dynamos supplying current for electric lighting. 



The tests reported in the principal table were two in number, 

 one of which was made with a friction load consisting of the 

 shafting and empty dynamos, and the other with a full load. 



Tests on the same engine at intermediate loads gave the fol- 

 lowing principal results : 



