ENGINE No. 89. 



Compound high-speed non-condensing engine, 6" and 12" x 

 12". Speed, 201 revolutions per minute. 



These diagrams are given simply as curiosities. The high- 

 pressure cylinder is doing nearly all the work, and the condi- 

 tions under which the steam is distributed are about as wasteful 

 as could occur. There is no cut-off in the high-pressure cylin- 

 der; the terminal pressure is the highest of any part of the 

 diagram, the release is late, and the back pressure on the low- 

 pressure diagram is excessive. 



ENGINE No. 89 



H.P. Cyl. 



40 



20 



O 



L.P. Cyl. 



- 40 



- 20 



318 



