2 35- "Of suction and force pumps may be also recommen* 

 ded the "Handy" or Semi-rotary Wing Pump mounted on 

 wheels (Fig. 49). These are priced by Messrs. W. Leslie 



FIG. 49. SEMI-ROTARY WING PUMP. 



& Co. of Calcutta at Rs. 125. They raise 300 to 500 gallons 

 of water per hour. 



236. Handier Syringe pumps are specially adapted for 

 applying insecticides and fungicides. Of these may be re- 

 commended Messrs. Heathman's Brigade Su6lion Pump, 

 made of brass and copper. It ejects to a distance of about 

 30 feet 300 gallons of liquid per hour. With 6 ft. suction- 

 hose and strainer, 2 ft. delivery-hose and nozzle, the price is 

 50 shillings. Extra suction-hose costs ^d. per foot and extra 

 delivery-hose &Jd. per foot. 



237. Centrifugal pumps which do not possess valves 

 and washers are not so liable to get out of order as ordinary 

 suction and force pumps, and if such are made with multi- 

 plying wheels suitable for hand driving, they may prove a 

 boon to our raiyats. Centrifugal pumps are in common use 

 in indigo plantations and in factories in this country, but 

 these are worked with steam-power. 



