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Twenty-three samples of dry ground fish have been 

 Dry examined, of which five were found deficient in nitro- 

 Ground gen and four in phosphoric acid. The average retail 

 Fish. cash price per ton was $39.65, the average valuation 

 S38.89, and the percentage difiference 1.95. Nitrogen 

 from dr}- ground fish has cost on the average 20.39 cents per 

 pound. Two brands have been analyzed which show a com- 

 mercial shortage of over 50 cents per ton. They are as follows: 



Chittenden's Dry Ground Fish, No. 6. Nitrogen found 7.80%, 

 guaranteed 8.23%; phosphoric acid found 7.70%, guaranteed 6%. 

 Rogers Mfg. Co.'s Dry Ground Fish, No. 223-256. Nitrogen 

 found 7.87%, guaranteed 8.20%; phosphoric acid found 5.59%, 

 guaranteed 5%. 

 Sulfate Two samples of sulfate of ammonia have been analyzed 

 of and found well up to the guarantee. The average cost 



Ammonia, of the pound of nitrogen in this form has been 15.65 

 cents. 

 Nitrate Sixteen samples of nitrate of soda have been analyzed 

 of and only one was found deficient in nitrogen. The 



Soda. average cost of nitrogen per pound in this form has 

 been 16.56 cents. 



Whitman 5" Pratfs Nitrate of Soda, No. 233, showed a com- 

 mercial shortage of over 50 cents per ton. It was guaranteed 

 15.63% nitrogen and only 15.27% was found. 



Three samples of this material were examined, two of 



Dried the brands showing a considerable overrun and one a 



Blood. slight deficiency in nitrogen, the latter containing, 



however, considerable phosphoric acid. The average 



cost of nitrogen from blood has been 20.16 cents per pound. 



Castor Six samples of castor pomace have been inspected and 



Pomace, the guarantee was maintained in each instance. The 



average cost of nitrogen in this fomi has been 22.29 cents per 



pound. 



Nineteen samples of cottonseed meal used for fertilizer 

 Cottonseed have been examined. These were licensed by six 

 Meal. companies doing business in Massachusetts. Nitro- 



gen from cottonseed meal has cost on the average 

 28.47 cents per pound. Seven out of the nineteen sam])Ies 

 analyzed showed a commercial shortage amounting to over 50 

 cents per ton. They are as follows: 



