2l6 



ACTUAL COSTS AND CAPACITY OF GAS\VORKS. 



cubic feet per annum. Including the accessories hori- 

 zontal steam engine, base plate, two screw-down disc 



18-6 







3. 



CO 



Fig. 1 6. Exhauster House : Plan. 



Fig. 17. Exhauster House : Roof Cross Section. 



valves, hydraulic regulator, gas governor, self-acting by-pass 

 valve, and all usual fittings and foundations complete the 

 cost was 



