Tran.uicti(<ii.\ Society Naval Architects and Marine Eiujinecrs, Vol. .'/, /p/p. 



Piate 11 



300, 



To illitstratc paper on "Nezv Developments in High Vacuum Apparatus," 

 by G L. E. Kothny. Esq., Member. 



2 S '^ wT^ 7 S ^ /O // 



/^ /J 



Curves illustrating air handling capacities 

 of a two stage ejector at different vacua. 



