76 ON THE PERCHLORATE OF THE OXIDE OF ETHULE, &C. 



The existence of a compound of the oxide of ethule with an acid cont^ning 

 seve7i atoms of oxygen led us to attempt to combine, by the same method, this 

 base with nitric acid. For this purpose we subjected a mixture of sulphovi- 

 nate and nitrate of barytes to the same treatment as described above, but the 

 reaction, even when conducted with the greatest possible care, is destructive, 

 hyponitrous ether and gaseous matters being the principal products obtained. 

 Nor were we more successful in our attempts to procure a sulphurous or hy- 

 posulphuric ether by the same process. 



