264 
MISCELLANY. 
the least efficient, and, excepting that by Joyce's charcoal stove, the 
most insalubrious that can be resorted to. 
Edin. New Phil. Journ. 
Analysis of the ashes of the Salsola tragus. By M. Guibourt. — M. Rayer 
having lately obtained a pretty considerable quantity of the salsola tragus, 
to experiment with, in calculous affections, M. Guibourt burnt a certain 
quantity of it, and subjected to analysis the fixed products of this incinne- 
ration. He found them formed of 
Carbonate of potassa, 29.04 
Chloride of potassium, 17.89 
Sulphate of potassa, 4.93 
Carbonate of lime, 40.26 
Phosphate of lime and oxide of iron, 7.88 
100.00 
These results are very remarkable, since they determine the existence of 
potassa, to the exclusion of soda, in a plant growing 1 upon the borders of 
the sea, and appertaining to a botanical genus especially characterized by 
the production of soda. — Journ. de Pharm. 
Note apon Quinine. By M. H. Magontv. — An accidental circumstance 
has led M. Magonty to study the influence of ammonical salts upon Qui- 
nine treated at different degrees of temperature ; thinking, like him, that all 
that relates to the alkaloid of Cinchona should be interesting, we report 
the conclusion to which his observations have led him. 
1. Quinine is more soluble in water than is generally thought, and the 
solution is greater by heat than cold. 
2. Quinine is dehydrated in the midst of water carried to 60°. 
3. Quinine is easily crystallized by means of water, when by the aid 
of alcohol this result is very different. 
4. Ammonia decomposes, when cold, the salts of Quinia but partially, 
the same is the case with magnesian salts, and in turn the ammonical salts 
are decomposed by Quinine by aid of ebullition in water. 
Journ. de Ch. Med. 
