326 
SELECTED ARTICLES. 
Fatty matter. 
Kinate of lime. 
Ligneous matter. 
Amidine. 
Several persons have attempted to determine the absolute 
and relative quantities of cinchonia and quinia obtained from 
the varieties of red bark. 
From one pound of Bark 
Cinchonia. 
Sulphate Quinia. 
70 grains. 
77 grains. 
90 
15 
97 
31 
80 
30 
150 
11 
184 
9 
20 
7 
Von Santen's Results. 
(from 
1. Fine quills of fresh appearance 
Cadiz, in 1803) 
2. Large, broad, flat pieces, of fresh brown- 
ed appearance (same chest) 
3. Middling quills, from their pale appear- 
ance probably 20 years older than the previous 
(from Cadiz in 1819) 
4. Broad flat pieces, not so thick as No. 2, 
(same chest as No. 3) 
5. Middling quills, heavy, old (from London 
to Hamburgh in 1815 : not met with now) . 
6. Thicker heavier quills (same chest) 
7. Thick flat pieces, quills, and fragments 
(above 80 years in Hamburgh : a pale kind) 
The following are the results of other chemists: — 
Cinchonia. Quinia. 
Michaelis obtained from 1 lb. of bark 32 grains. 64 grains. 
Goebel and Kirst (quills and flat pieces) 65 40 
(d.) Brown Bark (Cinchona fusca.) 
6. Huamalies, or Brown Bark. 
History and synonymes. — It is not known precisely 
when this kind of bark first came into Europe. Von Bergen 
thinks probably at the end of the last or commencement of the 
present century. This bark is not used in this country, and 
hence most druggists are unacquainted with it; but it is bought 
by some of our larger dealers for the foreign market. 
Commerce. — It is imported in chests; never in serons. 
Characters. — It is a thin, spongy bark, and occurs in quills 
and flat pieces. Many of the quills agree in their physical 
characters with that kind of bark which our druggists denomi- 
nate rusty, and which is picked out of the serons of Loxa 
