276 MB. V. H. VELEY ON THE CONDITIONS OP THE 



In another set of experiments a mixture was made up as follows :- 



31*5 grams potassium ferrocyanide. 

 420 sulphuric acid. 



1-3 



water. 



Temperature 150'8-151-2. 



Decomposition of Ammonium Nitrate. 



In my former experiments on the decomposition of ammonium nitrate the same 

 phenomenon was observed ; in these the standard volume of air taken was equal to 

 the volume of nitrous oxide given off by the decomposition of '05 gram of the salt. 



Temperature 210-210'5. 



In other series of experiments a similar very gradual acceleration was observed ; of 

 these only one need be quoted in illustration. 



Decomposition of Oxalic Acid by Strong Sulphuric Acid. 

 H 2 C 3 4 - OH 2 = CO 2 + CO. 



In the course of some experiments made to determine the effect produced by 

 alteration of pressure, the decomposition of oxalic acid into carbonic acid and oxide 



