266 Scientific Intelligence. 
without explosion; the paper may even be burned; it is decomposed 
without detonation. Lastly, it does not evolve any nitrous vapors when 
exploded, but appears to be entirely resolved into carbonic acid, water 
and azote, besides which, it does not change by keeping. 
The increase of - weight during the transformation of mannite into 
the new substance, is very considerable ; ; 100 parts become 225. 
S: 
13. On the Conversion of Neutral Nitrogenous Bodies, as Filrine 
and Caseine, into Fatty Substances ; by M. “BLONDEAU, (Chem. Gaz., 
Nov. Ist, ‘As4 7; from win Rend., Sept. 6th, and Journ. de Pharm., 
lon 
+ ee a cheese. ‘This is reed from ewe’s milk coagulated by 
rennet, and the fresh curd contains but -35th of fatty matter, as M. 
lo ndeau assured himself by treating it with a mixture of boiling alco- 
hol and ether. The peculiar qualities which render it so much prized, 
are acquired by placing it for some weeks in cool, damp, and dark cel- 
lars; when the cheese has been only five days in this situation, it is 
found to contain a considerable portion of a fat body mixed with un- 
altered caseum, and at the end of two months it is almost completely 
converted into a fatty substance, which was readily separated froin the 
unchanged caseum by boiling with water. It has a sweet agreeable 
_— at about 302°; it is easily ‘saponified, te aggabee a considerable 
| of these vegetables contain nitrogen ; their development conse- 
quently requires the presence of ammonia and carbonic acid. The am 
monia can only be furnished by the caseine which, in parting with thie 
alkaloid, becomes converted into a fatty body ; its composition in fact 
approaches very nearly that of the fats, if we subtract the elements of 
ammonia, a carbonic acid may be derived either from the caseine 
or from the a 
y greatly resembling hog’s lard, This ames appears 
cide the long disputed question, whether the bodies of animals under 
similar circumstances may be entirely changed A a fatty ones 
T. 
14. The Decomposing power of Water at high Temperatures, (‘Trans- 
Am. Phil. Soc., vol. x, Part Il; by Ricwarp TILGHMAN, A.M. pro 
Paper shows that the vapor of water passed over various substances 4 
