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farmer, aud at the same time, it is the cheapest form in 

 which nitrogen can be obtained in the Southern States. 



In addition to the seven per cent, of nitrogen which the 

 meal contains, it also furnishes a considerable supply of 

 phosphoric acid and potash — about three per cent, of the 

 former and two par cent, of the latter. 



While the nitrogen of cotton seed meal may not act as 

 quickly as that of nitrates and ammonia salts, nevertheless, 

 upon the decomposition of the meal in the soil, there are 

 formed compounds both of nitric acid and ammonia, similar 

 in composition to some of the mineral forms of nitrogen. 



In the purchase of cotton seed meal the farmer should 

 always guard against the admixture of hulls with the meal, 

 the presence of the hulls being readily detected by placing 

 the meal upon an ordinary sieve and shaking thoroughly. 



The dark colored cotton seed meals, which are sometimes 

 met with upon the market, while greatly damaged so far as 

 their utility as feed stuffs are concerned, are uninjured as 

 regards their ferfciliziug value, as has been repeatedly shown 

 by analysis. The cotton seed meal, in addition to its direct 

 applicatiou to the soil by the farmer, is employed as a source 

 of nitrogen in the preparation of a large proportion of the 

 complete fertilizers manufactured in the South. 



Among the chief forms of animal nitrogen met with in 

 the markets, may be enumerated fish scrap, dried blood? 

 tankage and various other by products from the wastes and 

 refuse of slaughter houses. 



Several of these, as tankage, fish scrap, etc., contain in 

 addition to the nitrogen, considerable proportions of phos- 

 phoric acid, though they are in general utilized chiefly for 

 the nitrogen they furnish. 



The dried blood is a product resulting from the evapora- 

 tion of the blood from slaughter houses' and the thorough 

 drying of the residue, frequently by means of superheated 

 steam. The color of the product varies with the tempera- 

 ture at which the drying is effected, and the red blood is 

 generally considered of more value than the black. The 



