DELATION OF THE BRITISH PHARMACOPOEIA TO PHARMACOLOGY. 573 
Infusum. 
Duration of Infusion in Hours. 
London. 
Edinburgh. 
Dublin. 
British. 
Anthemidis . 
1 
1 
x 
X 
Aurantii . 
u 
i 
i 
4 
1 
4 
X 
Bucco . 
4 
4 
2 
3 
1 
4 
1 
Calnmbae . 
2 
percolate 
2 
2 
I 
Caryophylli . 
2 
1 
X 
Cascarillae. 
2 
2 
1 
2 
1 
Catechu . 
1 
2 
X 
JL 
X 
Cliiratse. 
2 
2 
1 
2f 
* I 
Cinchona? Flay® . 
2 
4 
a 
g ; 
Cuspariae . 
2 
2 
2 
Cusso . 
X 
Digitalis . 
4 
4 
1 
4 
1 
Dulcamarse . 
1 
Ergotse. 
1 
1 
Gentianse Co.-j 
Ivramerise. 
1 
4 
12 
1 
1 
"S' 
4 
1 
Lini . 
4 
4 
4 
Lupuli . 
4 
2 
Maticae. 
1 
* 
i 
l 
Quassiee. 
2 
2 
1 
Rliei. 
2 
12 
1 
Rosse Acidum . 
2 
1 
1 
* 
i 
Senegse. 
4 
1 
Sennae . 
1 
1 
1 
1 
Serpentarioe . 
4 
4 
2 
Uvee-Ursi. 
2 
Yalerianse. 
4 
1 
1 
Infusion Calumbce would be a more satisfactory preparation if after infusion 
of the bruised root in cold water, the strained product were heated to the boiling- 
point to coagulate vegetable albumen. This procedure was recommended by 
Squire and by Greenish (Pharm. Journ. vol. v. p. 307). Cinchona is the only 
drug of which there is both an infusion and decoction. The decoction is not 
much stronger than the infusion, and neither contains the whole of the active 
matter of the amount of bark used in their preparation. I would again say that 
while quinine can be readily prescribed, it is difficult to understand what pecu¬ 
liar value attaches to these Galenical preparations of cinchona bark. 
Linimenta.— Linimentum Cantharidis is a modified form of the old Acetum 
Cantharidis , ether as well as acetic acid being used as a solvent for the vesica¬ 
ting principle of the cantharides. Redwood (Pharm. Journ. vol. i. pp. 134 and 
353) has shown that acetic acid is not a proper vehicle for the active matter of 
the flies, and Proctor (Pharm. Journ. vol. xii. p. 291) also states that cold acetic 
acid is an inefficient solvent of cantharidin. Ether, however, does dissolve it, 
though more easily when hot than cold. The Dublin liniment, now omitted, 
was, chemically, a model preparation of cantharides, for it was made by digesting 
the flies in olive oil for three hours in a steam or water-bath,—a mode of treatment 
which we know (see ante 1 Emplastrum Cantharidis') perfectly extracts the active 
matter. But, according to Squire (Three Pharms. p. 78), the resulting lini¬ 
ment was not a favourite, and so, probably, there is some medical objection to 
it; otherwise we should have expected that liniment to be the Linimentum 
Cantharidis of the British Pharmacopoeia. 
vol. v. 2 Q 
