14 THE CONNECTICUT AGRICULTUEAL 



The above statement of chemical composition will cover Super- 

 phosphates and Special Manures when it is desired to 

 specify minutely the state of the ingredient. Ingredients that 

 are not present may of course be omitted in the statement, and 

 others may be named if it is desired. 



In most cases manufacturers necessarily avail themselves of the 

 cheapest sources of nitrogen, and substitute nitrates for ammonia 

 salts or the reverse according to the state of the market. It is 

 therefore not easy to maintain any exact distinction as to nitrates, 

 ammonia salts and organic nitrogen. Some prefer also to group 

 together soluble and reverted phosphoric acid, and to use low'- 

 grade potash-salts which contain both sulphates and muriates. 



In such cases the statement of composition may be confined tO' 

 Nitrogen, Soluble and Reverted Phosphoric acid, Insoluble Phos- 

 phoric acid, Potash. 



In case of Bone, Fish, Tankage, Dried Meat, Dried Blood, 

 etc., the chemical composition may take account of the two in- 

 gredients : Nitrogen, Phosphoric acid. 



For Potash Salts give the per cent, of Potash (potassium 

 oxide), and of Sulphate of potash or Muriate of potash. 



The chemical composition of other fertilizers may be given as 

 found in the Station Reports. 



The common use of the word " ammonia" in place of nitrogen, 

 as applied to articles really containing no ammonia or ammonia- 

 salts, is not " approved" as it is not " currently employed by the 

 Connecticut Agricultural Experiment Station." The same is true 

 of the use of the terms " available" and " assimilable" as cover- 

 ing soluble and reduced phosphoric acid. 



The Station in analyzing the fertilizers sold under this law, as a 

 rule, can take account of those ingredients only which are speci- 

 fied in the Statement that accompanies each package sold. 



Form of Dealer's Report to the Station. 



Section 4 of the Act requires that every person in this State 

 who sells or acts as local agent for the sale of any Commercial 

 Fertilizer of whatever kind or price, shall, annually or at thetime 

 of hecoming such agent or seller, make a report to the Director 

 of the Experiment Station. The subjoined form may be used 

 for such reports. 



