lUli.J rUBLlC DOCLMENT — No. i^l. 65 



lia\o iio particular .significance in this connei'tion. The extrav- 

 agant claims made hy tlio (company for this " New England 

 mineral fci-lilizer '' are overdrawn, and border somewhat upon 

 the ridiculous. 



A^iTKOGEN Co.Mi'oCiNDs. — ^Siilfdlc of A)iuit onUi. — Two saui" 

 ])les of sulfate of ammonia have beeu analyzed and found well 

 up to the guarantee. The average cost of the pound of nitrogen 

 in this form has been 15.05 cents. 



Nitrate of Soda. — Sixteen samples of nitrate of soda have 

 been analyzed and only 1 was found deficient in nitrogen. The 

 average cost of nitrogen i)er pound in this form has been 1G.5G 

 cents. 



Dried Blood. — Three samples of this material were exam- 

 ined, 2 of the brands showing a considerable overrun and 1 a 

 slight deficiency in nitrogen, the latter containing, however, 

 considerable jihosphoric acid. The average cost of nitrogen 

 from blood has been 20.10 cents per pound. 



Castor Pomace. — Six samples of castor pomace have been 

 inspected and the guarantee was maintained in each instance. 

 The average cost of nitrogen in this form has been 22.29 cents 

 per pound. 



Cottonseed Meal. — Nineteen samples of cottonseed meal 

 used for fertilizer have been examined. These were licensed 

 by companies doing business in Massachusetts. Nitrogen 

 from cottonseed meal has cost on the average 28.47 cents per 

 pound. Seven out of the 19 samples anah'zed showed a com- 

 mercial shortage amounting to over 50 cents per ton. 



Potash Compounds. — Carbonate of Potash. — Only 1 

 sample of carbonate of potash was analyzed during the season. 

 It sold so that the pound cost of actual potash was 7.54 cents. 



High-grade Sulfate of Potash. — Nine samples of high-grade 

 sulfate of potash have been examined and the potash guarantee 

 was maintained in every instance. The pound of actual potash 

 in this form has cost, on the average, 4.64 cents. 



Potash-magnesia Sulfate. — Seven samples of double sulfate 

 of potash and magnesia have been examined, and all have been 

 found well up to the guarantee. The pound cost of actual -poi- 

 ash in this form has been 5.46 cents. 



Muriate of Potash. — Eleven samples of muriate of potash 



