49  C.M. Warren on Sulphur in Organic Compounds. 
Art. VII—On a new Process for the determination of Sine 
in Organic Compounds, by comm ner with Oxygen Gas and 
C. 
Peroxyd of Lead; by C. M. WARRE 
In my former eer a “Ona ag of Organic Ele- 
this class. It was my ; intention, oy § a to have denim the 
process before this to other classes of bodies , and especially to 
have tested its applicability, with suitable modifications, for the 
analysis of ongente substances containing other elements. 
Other work with which I was then occupied, and to which 
this yids was only incident, as already stated in the paper re- 
ferred to, has prevented me from extending the research beyon 
the “epbpayer of my other investigations, 
pesca? 
Se: 1 From the Proceedings of the American Academy, March, 1865, 
tet ie American Academy, 1864, p. 251. * 
4 Carius (Amnalen er Chemie und Pharmacie, 1860, cxvi, 28) has observed that 
when s ubstances nich in Emin jur are burnt with oxyd 0 of copper—a tube containi 
paroxyd of “ie lead being placed between the chlorid of calcium tobe and the pota 
bulbs in usual manner—the determin carbon is too high. And on the 
other hand ,* found that, with substances rich in carbon, on dabeemindssonyah the 
ged was cra My the sigdng the perox dp of lead was supposed to absorb 
and retal and in the fo: rmer, sul i found Iss UN- 
ahiched thewegh | e peroxyd of lead. REE eee 
*QjThe incomplete rhs orption of the sulphurous acid may be reasonabl. 
for on the supposition that a channel was formed, by handling or jarri ms gneg a 
top of the peroxyd of lead, which goad would be very likely to occur in using, y 
