102 AGRICULTURAL EXPERIMENT STATION. [Jan. 



YALUATIOIS' OF FERTILIZERS, AND 

 FERTILIZER ANALYSES. 



Tkade Values of Feetilizing Ingredients in Raw 

 Materials and Chemicals. 



Cents pek Pound. 



Nitrogen in ammonia, 



Nitrogen in nitrates, 



Nitrogen in dried and fine ground fish, . 



Organic nitrogen in guano and fine ground blood and 



meat, 



Organic nitrogen in cotton seed, linseed meal, and in 



castor pomace, 



Organic nitrogen in fine ground bone, . 



Organic nitrogen in fine medium bone, . 



Organic nitrogen in medium bone. 



Organic nitrogen in coarse medium bone, 



Organic nitrogen in coarse bone, horn shavings, hair 



and fish scraps, ....... 



Phosphoric acid, soluble in water, .... 



Phosphoric acid, soluble in ammonia citrate,* 

 Phosphoric acid, insoluble in dry fine ground fish, and 



in fine bone, ....... 



Phosphoric acid, insoluble in fine medium bone, . 

 Phosphoric acid, insoluble in medium bone, . 

 Phosphoric acid, insoluble in coarse medium bone. 

 Phosphoric acid in coarse bone, .... 



Phosphoric acid in fine ground rock phosphate, . 



Potash as high grade sulphate, 



Potash as kainite, ....... 



Potash as muriate, .... . . 



22 



18 

 20 



18 



18 

 18 

 16 

 14 

 12 



10 



10 



9 



6 



H 

 5 



4 



n 



41 



18 

 18 

 18 



18 



18 

 18 

 16 

 14 

 12 



10 

 9 



6 



5 



4i 

 4 

 2 



n 



41 



* Dissolved from two grama of phosphate, unground, by 100 cc. oeutral solution of am- 

 monium citrate, sp. gr. 1.09, in 30 minutes at 65 deg. C, with agitation once in five minutes; 

 commonly called " reverted " or " backgone " phosphoric acid. 



