oat atl 
380 W. Gibbs: Contributions to Chemistry. 
oxyd. sgn sha burns slowly and without explosion in 
vacuo—an observation which, however, is by no means new— 
used cupric oxalate to furnish the required carbonic acid, but 
Mr. Sharples has been more successful in determining nitro- 
veto by a single analysis. By placing a weighed 
of calcium tube in front of the combustion — 
ie 
