15 



Union Seed & Fertilizer Co. — Surety Brand Cottonseed Meal, No. 23 : 

 nitrogen found, 5.65 per cent, guaranteed, 5.76 per cent. No. 672: nitrogen 

 found, 5.45 per cent, guaranteed, 5.76 per cent. 



Rapeseed Meal. — Seven carloads have been examined. They showed 

 an average of 5.08 per cent of nitrogen. The average ton cost was $67, with 

 a commercial valuation of $51.98. All of this product was sold on the unit 

 basis, but with a minimum guarantee. The average cost of nitrogen from 

 this source has been 65.9 cents. Rapeseed meal tests on the average about 

 2.02 per cent of phosphoric acid and .97 per cent of potash. These elements 

 have not been taken into account in computing the commercial value of the 

 product as they were not guaranteed, the product being bought primarily 

 as a nitrogen source for tobacco. Five carloads showed a commercial short- 

 age of over $1 per ton. Shortages, however, were made good in all cases. 

 When any product is sold on the unit basis the purchaser simply pays for 

 what plant food is found to be present upon analysis of the shipment. 



Nitrate of Soda. — Seventeen samples have been examined, necessitating 

 12 analyses. The average nitrogen content found was 15.27 per cent. The 

 average cost of nitrate of soda has been $100.92, making the pound cost of 

 nitrogen 33 cents. The average commercial valuation per ton has been 

 $97.75. No deficiencies were noted. 



Sulfate of Ammonia. — One sample has been analyzed. It tested 21.90 

 per cent of nitrogen. The sample was well up to the minimum guarantee. 

 The ton commercial valuation was $131.40. 



Calcium. Cyanamid. — Two samples of this product have been inspected. 

 The average total nitrogen found was 21.10 per cent. The average ton cost 

 was $112.30, with a commercial valuation of $105.50. The pound cost of 

 nitrogen was 26.6 cents. No deficiencies were noted. 



Nitrapo. — Two samples of this product were analyzed and gave the fol- 

 lowing results: nitrogen, 14.39 per cent; potash, 19.39 per cent. The com- 

 mercial valuation of this product was $208.11 per ton. Both of the samples 

 were well up to the minimum guarantee. 



Wood Ashes. — Thirty-nine carloads of ashes were analyzed during the 

 season, representing four brands. The average of these analyses is as 

 follows : — 



Per Cent. 



Moisture, 14.00 



Water soluble potash, 4.41 



Total or acid soluble potash, 5 . 66 



Phosphoric acid, 1 . 68 



Calcium oxide, ; .31.82 



