COMMERCIAL POWDERS OF GINGER AND CINCHONA. 
221 
Turning to tlie other portion of our subject, I must confess that here also 
there seems to be plenty of room for improvement; and I may perhaps ven¬ 
ture the hint that our Conference might probably do good service by appoint¬ 
ing a committee to inquire into the subject of impure drugs generally, and 
to report thereon at our next gathering. 
TABLE II. 
Showing the Variations in Quality of the “ Powdered Cinchona ,” or “ Bark," of 
Commerce. (27 Samples .) 
1 
<D 
£ 
Where purchased. 
If genuine, 
or otherwise. 
O 
l o 
Ph 5 3 
6 3 6 
3 a s 
Remarks. 
m 
§3 
* S > 
s 
( Standard 
2-71 
105 
Yellow bark. 
s 
1 
) Specimens 
2-36 
92 
s 
c 
bof Cinchona 
1-94 
76 
Bed „ 
s 
♦ ) 
( Barks. 
1-60 
65 
Pale „ 
1 
London . . . 
Genuine . . 
2-40 
90 
“ Yellow.” 
2 
1-72 
65 
„ of inferior quality. 
3 
Adulterated. 
• • • 
15 
Very bitter, apparently from ad- 
mixture of gentian. 
4 
•82 
35 
Mixed with other woody matter. 
5 
5? * 
•70 
27 
” ” ”, „ 
6 
?? * 
• • • 
12 
(Sample destroyed before fi- 
nished.) 
7 
Genuine . . 
1*75 
68 
Fair specimen of the red bark. 
8 
Adulterated. 
•24 
_ m * 
A reddish ligneous powder with 
•56 
slightly astringent taste.f 
Flour, linseed meal, and spent 
9 
hark. 
10 
Genuine . . 
2-80 
112 
Very fine yellow bark. 
11 
” 
„ ... 
* 
•84 
25 
Poor specimen, but no apparent 
admixture. 
12 
Liverpool . . 
5? 
2-00 
72 
A fair sample. 
13 
Adulterated. 
• • • 
• • • 
Simply rubbish. J 
14 
Birmingham 
yy • 
1*20 
42 
Mixed with spent bark. 
15 
1-42 
11 
Mixed with spent bark and sa- 
licine. 
1 6 
Genuine . . 
1-85 
74 
Good sample of red bark. 
17 
Adulterated. 
•14 
5 
Mixed with other woody matter. 
18 
5 ) 
j Manchester . . 
• • • 
38 
(Insufficient sample.) 
19 
20 
| • 
Edinburgh . . 
Genuine . . 
•60 
2-10 
18 
73 
Mixed with wood and limestone. 
Fair specimen. 
21 
22 
Glasgow . . . 
Dundee . . . 
• • 
2-64 
P45 
96 
53 
Excellent. 
Apparently the pale variety. 
23 
1 Bristol ... 
5? * • 
1-05 
36 
Poor specimen of red bark. 
01 
Adulterated. 
•42 
16 
Mixed with spent bark. 
25 
,, ... 
Wolverhampton 
•74 
31 
Contained 15 per cent, argil¬ 
laceous matter. 
Oft 
S 
•82 
29 
(Accidentally wasted.) 
27 
§ 
J 
Genuine . . 
1-48 
57 
Probably from pale bark. 
* “100 fluometric value ” = 2*5 per cent, pure quinine, 
f This was a general mixture of several woods with spent cinchona baric 
+ Ground ligneous matter of some kind, flavoured with a little cluretta. 
§ Kindly furnished by Dr. Attfield. 
