REVIEW OF FEED-WATER TESTS. 



269 



Simple Condensing Engines. 



Compound Condensing Engines. 



The average of the results on the simple condensing engines 

 is 19.74 Ibs., and of those on the compound condensing engines, 

 14.12 Ibs. The difference is 5.62 Ibs., or 28.5% of the feed- 

 water consumption of the simple engines. 



In the case of non-condensing compound engines of the 

 4-valve type, there is only one engine in this class, Engine No. 



