ACTUAL COSTS AND CAPACITY OF GASWORKS. 



215 



at a speed of 90 revolutions per minute, against a gas pres- 

 sure of 20 inches water column. The capacity is, therefore, 

 equal to a daily make of 180,000 cubic feet, or 36,000,000 



Fig. 14. Exhauster House : Side Elevation. 



Kig. 15. - 1 ; 1 Elevation. 



m 



