MACHINERY 



81 



height iu feet to which by the expenditure of a similar 

 amount of work, the animal's body would be raised. 



[Table from Madras Agricultural Department Bulletin 35, 

 by Sir A. Chatterton. j 



Amount of water lifted one foot for 1 anna. 



By bullocks iu country mhote (1882 : Benson) 4,00(1 

 By bullocks in country mhote : (1907 : 2,000 



Chatterton). 

 By oil-engine and pump : under very 13,500 



favourable conditions. 

 By oil-engine and pump : under ordinary 9,000 



conditions. 

 By oil-engine and pump : under unfavourable 4.000 



conditions. 



The loss of power in a centrifugal pump ranges from 75 

 per cent for a 2" suction pipe to 60 per cent for a 3" suction 

 pipe and 45 per cent for a 10" or 12' pipe. 



A 3" pipe will lift up to 22 feet easily and a 4" pipe will 

 lift up to 28 feet. 



The larger the installation the more economically the 

 engine can be run, owing to the increased efficiency of the 

 engine, and the proportionate saving in the establishment. 



