No. 6. 



DEPARTMENT OF AGRICULTL'RE. 



b25 



*TABtE Showing Percentages of Ammonia in Solutions of the Gas in 

 Water, as Indicated by their Specific Gravities. 



tBeaume 16° indicates .900 sp. gr. 

 Beaume 20° indicates .960 sp. gr. 

 Beaume 22= indicates .924 sp. gr. 

 Beaume 24° indicates .913 sp. gr. 

 Beaume 26° indicates .901 sp. gr. 



If possible, nothing but rain water should be U6>ed in diluting the 

 amuicnia for the solution. When ammonia is added to well or spring 

 water, a heavy floceular precipitate is apt to be formed, which must 

 not be mistaken for undissolved particles of copper carbonate. The 

 latter are easily distinguishable, being light greenish blue in color 

 and somewhat flaky, while the precipitate from the water is formed 

 in rather large, dark floccules. These floccules do no harm. The 

 danger lies in mistaking them for the undissolved carbonate and 

 adding enough ammonia to bring them into solution, which requires 

 far more than plants will endure. 



The solution must be made in wooden or earthen vessels and 

 wooden stirring implements should be used. Iron ves<sels would be 

 soon corroded by the action of the copper. 



•Compiled from the Table of Lunge und Wernik, cited by Caldwell: "Elements of Chemical 

 Analysis," page 173. 

 tLodeman: "The Spraying of Plants," page 116. 



