INSPECTION OF COMMERCIAL FERTILIZERS 



27 



Nitrogen Compounds. 



Under thds heading will be found the fertilizer chemicals and unmixed mate- 

 rials valued chiefly for their nitrogen. Averages are given where more than 

 one analysis has been made of the same brand; these are indicated by footnotes. 

 Brands showing a commercial shortage of one dollar or more per ton are listed 

 in a separate group and deficiencies are emphasized by boldface type. 



Nitrate of Soda and Sulfate of Ammonia. 



Brands Substantially Meeting Their Guarantees. 



Brands Showing a Commercial Shortage op $1 or More per Ton. 



Apothecaries Hall Co. . 

 Summers Fertilizer Co., Inc. 



115 



14.47« 



14.80 



19.44< 20.58 



1 Two other samples showed commercial deficiencies of over $1 per ton. 



2 Three analyses. 

 ' Two analyses. 



* The three samples showed commercial shortages as follows: $2.18, $1.83, and $3.94 per ton. 

 Rebates were made, based on Station analyses. 



5 Eleven analyses. 



' The average of the eleven samples showed a commercial shortage of $1.22 per ton. The 

 individual samples showed shortages as follows: $1.41, 63 cents, $1.26, $1.04, $1.74, 85 cents, 

 44 cents, $1.22, $1.15, 59 cents, $2.96. Rebates on the total tonnage sold by this firm in the state 

 amounted to $217.01. 



Tests made on a composite sample composed of equal weights from the ten samples showed 

 the following composition: 



100.00 



The manufacturer's explanation of these deficiencies is as follows: Goods were shipped from 

 Baltimore to Massachusetts points before foreign test was received. The foreign test being under 

 contract figures, proper allowance was made which was in turn extended to the Massachusetts 

 purchasers. 



