IC.S EGYPTIAN AGRICULTURE. 



British "Horse Power" of 33,000 foot-pounds equals 

 4.,">:>4 kilogrametres, only \\% more. 



1 W.H.P. equals 1 metre cube water raised 4*50 m. 



1-5 ., ,, .. 3-00 



3-0 ., ., ., 1-50 .. 



4'5 I'OO .. 



The metres cube of water raised multiplied by the lift 

 in metres and divided by 4*5 give the W.H.P. of a ma- 

 chine. Comparison can then be made between machines 

 of different type. 









FIG. 80. THE BADALA. 



The Ji<i<l<iltt or Waloor is a machine for lifting a small 

 quantity of water not more than 50 m. high by means of 

 one man. Three boards 2'50 to 3*00 m. long by '20 broad 

 are formed into a long trough closed at one end and open 



