258 Scientific Intelligence. 
but was distinguished by forming | ide under the action of ammonia. 
In attempting to form this substance, Laurent obtained only benzoate 
of hydruret of benzoyle. This latter gave C. 76-20, H. 5°45, answer- 
Dessaignes. Sugar of gelatine is, therefore, isomeric with the carbon- 
ate of methyle or urethylane. G.C. 8. 
10. On the’ Amides; from a letter of Matacuri, (Comptes Rendus, 
May, 1846.)—With a view to the study of these compounds, Malaguti 
has prepared large quantities, and has added several amides to the list 
of those already known. He says, there is no difficulty in preparing 
them and in discovering new ones. When we have an acid, we have 
generally an ether, and when we have an ether we have an amide. 
The difficulty consists in the preparation of very pure acids. 
A preliminary investigation of the action of heat upon these com- 
pounds, leads to some interesting results which we cannot, however, 
give in detail. The mode furnished is to examine the action of beat 
upon the salt of ammonia, and to separate these results from those pro- 
duced by the heating of the amide; in this way the decomposition pe- 
culiar to the latter, is supposed to be shown. Fi Cathe 
11. Asparamide.—When pulverized asparamide is acted upon by an 
~ As other amides form saline compounds with metals, Laurent remarks 
i ide, he does 
12. On the Formation of Chloro-cyanilide and Fluo-silicanilide > 
by Avec. Lavrent and J. Detsos.—(Comptes Rendus, Apr., 1 .) 
The action of ammonia upon acids forming amides and of the remark- 
able base aniline forming analogous compounds, anilides, has led Lau- 
rent and Gerhardt to the investigation of the combinations of these 
bodies with the fluorids and chlorids. 
and fluo-hydrate of aniline in the other. 
By analogy it is very probable that the corresponding combinations 
of ammonia are in reality mixtures of amides and salts of ammonium. 
~ 0.8 
13. On the Growth of Bone in the Hog; by M. BovssiNGavLty 
(Ann. de Chim. et de Phys., Apr., 1846.)—This curious investigation 
