MAMURES. 



271 



atory of the Khedivial Agricultural Society by Mr. Hughes 



gave the following results : 



These good samples show an average content of nitrate 

 of soda of 7'&2% out of an average content of total salts 

 of 16*24^, the remainder being chiefly common salt and 

 sodium sulphate. Many samples are almost worthless, 

 being of a hard shaly nature, while the best samples ana- 

 lysed contained 16*91%^ of nitrate of soda. 



The price paid per ton for the material varies considerably 

 with the distance transported, but taking into consideration 

 that the richer the sample is, the greater distance it has to 

 be transported, the price as a rule tends towards a certain 

 uniformity per cent, of nitrate content. Average material 

 containing 5 or 6% of nitrate of soda costs, delivered on 

 the land, approximately 40 P. T. per ton, and as much as 

 L.E. 2 or L.E. 3 is sometimes spent for manuring a fed- 

 dan. A price of 40 P.T. per ton for material of the 

 nature indicated, is equivalent to about 650 P.T. or 

 700 P.T. per ton for pure nitrate of soda. 



This is less than the price of the latter which in Upper 

 Egypt would cost L.E. 12 per ton. 



