FARM. IMPLEMENTS OF IRRIGATION. 17;; 



he pulls it down hand over hand, giving the shadoof a 

 lift of 3 metres, in which case the number of strokes 

 would not exceed 5 per min. In ordinary work the lift 

 is 2*00-2*50, and the strokes 7 per minute. In upper 

 Egypt it is very common to see three shadoofs at work, one 

 discharging to the other to attain a lift of 6 or 7 metres. 

 The capacity of a shadoof works out to 



litres. .strokes. mia. per hour. 



20 x 7 x C.n = 8*4 nr 



but that is continuous work not possible for one man. 



The shadoof is an excellent conception. The man gets 

 the weight of his body pulling down, and can exercise far 

 more force than he could in lifting-up work, which is done 

 for him by the counterpoise. There is no complication 

 of parts with resulting friction. The number of shadoofs 

 in Egypt is enormous and their working absorbs a very 

 great proportion of the labour force of the country. 



The Sakieh. When water is drawn from a well the 

 ordinary means is a bucket and rope, but that is too 

 slow when large cjuantities are required. In India the 

 bucket becomes half a bullock's skin fetching up 200 litres 

 at a time from a well of a depth of 20 metres. Two 

 bullocks walking down an inclined plane are needed to 

 raise this weight of water. An ingenious tripping rope 

 upsets the bucket when it reaches the top, and the animals 

 return unloaded up the slope whilst the bucket descends. 



The sakieh has an endless rope, sometimes of straw, 

 carrying earthen pots or buckets at intervals of 2 to 3 feet. 

 This rope passes over a vertical wheel having on its axle 



