280 EGYPTIAN AGRICULTURE. 



from slaughter-houses, which in the past was allowed to 

 accumulate and endanger health is now mixed with sifted 

 coufri, and the resulting manure sold under the name of 

 "Matieres Abattoirs" while the refuse from tanneries at 

 Old Cairo, treated in a similar manner, is sold as " Engrais 

 des Tanneries." These manures contain from *75 to 1'0% 

 of nitrogen and 2% of phosphoric acid, and are sold at 

 from 20 to 25 P.T. per ton. These substances form a 

 valuable substitute for farm-yard manure and are sold at a 

 very reasonable price. A comparison of the analyses with 

 those given of farm-yard manure will show the latter 

 substance to be much inferior in composition. The annual 

 production of the two preceding manures is about 4000 

 tons. The sweepings of certains towns are sold after 

 sifting to the extent of about 2000 tons per year, 



VARIOUS PRODUCTS. 



Other manures offered by this local company a.re as 

 follows : 



Bone meal. This is steamed and sold under a guarantee 

 of 2^ nitrogen, and 20% of phosphoric acid for 330 P.T. 

 per ton. 



Meat meal. This manure is made from the refuse of the 

 carcasses of animals, and from meat which is recognised 

 as unfit for human consumption. It is sold on a basis 

 of 9% of nitrogen at 500 P.T. per ton. 



Dried blood. Fresh blood contains 80% of water and 

 from 2*5 to 3 % of nitrogen. When dried it forms a very 

 concentrated and nitrogenous manure, which has a ready 

 sale in. Europe where it is generally sold on a basis of 1 2 % 



