FOR AUXILIARY PURPOSES ON BOARD SHIP. 167 



was 16,579 pounds of fuel per hour with 12.5 per cent CO2. This corresponds to 

 20,000 cubic feet of air per minute entering each blower, so that it would appear 

 that the figures obtained by the box method originally carried out, while intended to 

 be purely comparative, were not so very far from being fairly accurate, and are 

 certainly much nearer the mark than inferred by Mr. Schmidt, who figures only 

 12,750, which would give about 23 per cent less air than actually required to sup- 

 port combustion under the boilers. 



