192 /;<; YI>TL\N AG8ICULTU&& 



days. Condensing by gravitation water is therefore a 

 great advantage. The pumping engines were each 

 guaranteed to lift 171 cubic metres of water per minute, 

 on a lift of 3*35 metres with a consumption of 2 kilo- 

 grammes of Welsh coal per hour per horse-power in water 

 actually lifted. 



They worked fully up to this guarantee, and when they 

 were afterwards removed to Mex to pump Lake Mareotis 

 they worked night and day throughout the six months' 

 pumping season (the total stoppages during the month 

 being about 12 hours) and averaged 10 per cent, more 

 water than the .estimate on a coal consumption 10 per cent, 

 less than the estimate. 



When working at Mex the cost of the pumps, on a 

 3'5-metres lift, averaged per month : 



Wages L.E. 9ti 



Oil and stores 30 



Coal 360 tons at 11:M> P.T. = 405 



L.E. 531 



During the month, the' pumps discharged 15,000,000 

 cubic metres of water, making the cost per million 

 L.E. 35*40. The pumps averaged 100 million cubic 

 metres during the season, October to April. 



In 1901 at Atf, the Government pumped 40 million 

 cubic metres in 36 days on a lift of 1*83 metres using per 

 million cubic metres 12 tons of coal costing L.E. 1*710 per 

 ton. The cost per million was L.E. 52*70. At Mex where 

 there are now, besides the two " Invincible " pumps, 

 5 Farcot pumps, the water pumped was 316 million cubic 



