15 



Nitrogen from fish has cost on the average 22.3 cents per pound. 

 Two brands showed a commercial shortage of over fifty cents per ton. 

 They are as follows: 



The E. D. Chittenden Co., No. 415. Nitrogen found 7.62%, 

 guaranteed 8%; phosphoric acid found 4.16%, guaranteed 6%. 



Lister's Agricultural Chemical Works. No. 353. Nitrogen found 

 7.53%, guaranteed 8.23%; phosphoric acid found 8.29%, guaran- 

 teed 11%. 



Seven samples have been inspected, representing 

 Dried Blood. six anal}'ses. Two were found deficient in nitrogen. 



In both cases the nitrogen deficiency was made up 

 in part by phosphoric acid, so that no commercial shortage of over 

 fifty cents per ton resulted. Blood has averaged 9.86 per cent nitrogen, 

 with an activity of 76.98 per cent. Some of the samples have shown 

 a rather high percentage of phosphoric acid, which would indicate 

 the presence of more or less tankage. The average per cent of 

 phosphoric acid was 4.28, the highest amount found being 7.92 per 

 cent. The average retail cash price for blood has been $51.50, and 

 the average calculated commercial valuation $42.46 per ton. The 

 average pound cost of nitrogen from dried blood has been 26.12 cents. 



Two samples were examined, and in both cases the 

 Castor Pomace, nitrogen guarantee was well maintained. Only one 



cash price was procured on castor pomace. This 

 was $22.00 per ton. The average calculated commercial valuation 

 has been $19.12 per ton. The cost of nitrogen, based upon the single 

 cash price furnished, was 24.4 cents per pound. Castor pomace has 

 shown, on an average, 4.78 per cent nitrogen, about 59 per cent of 

 which has been found active. 



Sixty-two samples of cottonseed meal have been 

 Cottonseed Meal, examined. All of the meal inspected was bought 

 as a nitrogen source for tobacco and each sample 

 represents a car load of from twenty to thirty tons. The average 

 retail cash price has been $31.90, and the average calculated commer- 

 cial valuation $25.48 per ton. The average pound cost of nitrogen 

 has been 25 cents. The average per cent of nitrogen in cottonseed 

 meal has been 6.38, about 56 per cent of which was found active by 

 the usual laboratory method. 



The following brands have shown a commercial shortage of over 

 50 cents per ton: 



American Cotton Oil Co., No. 484. Nitrogen found 6.17%, 

 guaranteed 6.50%. 



Buckeye Cotton Oil Co., No. 6. Nitrogen found, 6.16%, guar- 

 anteed 6.50%. 



Humphreys-Godzi'in Co., Nos. 3, 8, 9, 16, 24, 28, 34, 38, 379, 380, 

 679, 798. Average nitrogen found 6.13%, guaranteed 6. 50%. 



