te 
ee ee | 
ve 
Brandes found its ulterior principles to | 
- Carbon 78.4 
Nitrogen 14.6 eS 
Hydrogen 7.5 es 
He could discover no traces of oxygen. 
The sulphate and acetate of Cinchonine are used in 
medicine. The first is very soluble in water—the second 
much less so, but an excess of acid dissolves it with con- 
siderable facility. eS 
The analysis of Pale bark, (cinchona lancifolia,) by 
cs emi and Cayentou, furnished the following prin- 
ciples— 
F 1. Acidulous kinate of Cinchonia. 
2. A green fatty matter. : 
3. Red colouring matter, slightly soluble. 
4. The same, soluble, (tannin. ) 
5. Yellow colouring matter. 
6. Kinate of lime. 
Sulphate of cinchonia is easily crystallizable, and ‘mo- 
derately soluble. It consists of 100 parts of the alkali, and 
13.02 of sulphuric acid. : 
Nitrate of cinchonia is uncrystallizable, and sparingly 
soluble. ; 
_ Muriate of cinchonia crystallizes in beautiful needles— 
is more soluble than the preceding salts. 
Oxalate of cinchonia is nearly insoluble—hence, by 
pouring oxalic acid, or oxalate of ammonia, into solutions 
of any of the soluble salts of Ci ‘ia, a white abundant 
precipitate is obtained, which es oxalate of lime, 
and is soluble in excess of acid, and in alcohol. - 
Gallate of cinchonia is as insoluble as the oxalate—hence 
a precipitate ensues, in pouring an infusion of galls into the 
decoctions of genuine Cinchonia. — 
The Kinic Acid, which exists in native combination with 
Cinchonia, is converted by heat into a substance which is 
crystallizable, and produces, with iron, an elegant green 
colour, This substance is called by the French chemists, 
Acide pyrokinique. ar 
MeptcaL Properties anp Uses. Cinchonia, in its state of 
neutral salt, with sulphuric acid, has the same properties 
‘as sulphate of Quinine and the Cinchonia barks. It is not, 
however, so generally used; and seldom, if ever, in this — 
country. The practical application of this salt would form 
