DARTMOUTH LAKES POWER. DOANE. 29 



The countrj is rough and broken, a portion bein.q- wooded, 

 and a large proportion waste hmd. 



After passing through the Starr Manufacturing Company's 

 works, the water, previous to the amalgamation of the two com- 

 ])anies, was used again at the electric light station below Port- 

 land Street. 



For this purpose the water was carried to a point opposite 

 the light station by a flume 4 ft. 6 in. wide, and 15 in. 

 deep. When examined by the writer the water was flowing 

 about 14 in. deep with an inclination of .002 feet per foot. 

 Under those conditions the sluice would discharge 1134 cubic 

 feet per minute. From the flume the water was taken by a 4 ft. 

 pipe to a 20 in. crocker turbine, working under a head of 18 ft. 

 4 in. At 75 per cent, efiiciency the wheel would develop 29.25 

 horse-power. 



The water running the Starr works is drawn from Sullivan's 

 Pond through a 44 in. pipe, 417 feet long, with a discharging 

 capacity of 12,900 cu. ft. per minute. The wheels work under 

 31 ft. head. The shop is run by a 30 in. wheel, " standard " 

 make, purchased from T. H. liisdon & Co., Mount Holly, Xew 

 Jersey. The grinding room machinery is kept in motion by a 

 10 in. " American " turbine manufactured by the Dayton Globe 

 Iron Works Co., Dayton, Ohio. A 22 in. " special " new 

 American turbine (Dayton make) has been used to operate elec- 

 tric generators for lighting the town. 



The catalogue capacity of these wdieels is : — 



size 



Head in 



ft. 



Revolutions. 



Horse-power. 



Cu. ft. of water 

 used. 



30 in. 



31 





262 



83.4 



1674 



10 in. 



31 





681 • 



21.8 



465 



22 in. 



31 





326 



116.7 



2492 



A comparison with the theoretical horse-power of the water 

 ■used shows that the wheels are rated at higher efficiency than 



