DEVELOPMENTS IN OIL BURNING. 



273 



The boiler room of the United States Navy oil-tank ship Arethusa is 

 shown in Fig 15, Plate 100, the two Babcock & Wilcox boilers replacing two 

 double end Scotch boilers. This vessel is one of the first fitted with mechani - 

 cal atomizers operating under natural draft. 



SCOTCH BOILER INSTAIvIvATIONS. 



The round spray mechanical atomizer and impeller plate are well 

 adapted for use in the corrugated furnaces of the Scotch boiler, and The 

 Babcock & Wilcox Company has made installations for both natural draft 



Fig. 16. — Herman Frasch Installation. 



