163 ON THE ETHEREAL EXTRACT OF CUBEBS. 
36° Baume, the alcohol removed from the tincture by dis- 
tillation, and the residue evaporated to the consistency of 
honey ; about twelve ounces of extract is thus obtained, 
which, when mixed with the volatile oil, is completed. 
This is undoubtedly a good preparation, but the com- 
plexity of the process used in obtaining it is objectionable. 
In the analysis of Cubebs by Monheim, he found the 
following ingredients in 1000 parts: 
Waxy matter, ... 30 parts. 
Cubebin .... 45 u 
Green volatile oil . . . 15 " 
Yellow volatile oil . . 10 " 
Balsamic resin . . . 15 " 
Extractive . . . . 60 " 
Lignin 650 " 
In treating Cubebs by the process of Dublanc, the pro- 
duct contains all the cubebin and resin, most of the volatile 
oil, except that dissolved in the water, a part of the extrac- 
tive and waxy matter; hence it is deficient in the most 
essential part, the volatile oil. 
When pulverized Cabebs is treated directly by ether in a 
displacement filter until exhausted, and the ethereal tinc- 
ture distilled carefully in a water-bath, the residue has a 
homogeneous consistence, about that of copaiba, a dark 
olive brown colour, transparent after the deposition of a 
small quantity of waxy matter, and possesses the odour, 
taste, and active properties of the drug in a marked degree. 
This substance consists of all the volatile oil, cubebin, and 
resin, most of the waxy matter, none of the extractive, and 
hence embraces all the active principles of the plant, to the 
exclusion, if we except the waxy matter, of those that are 
inactive, It is a true oleo-resin, and preserves its fluidity 
until the volatile oil is evaporated by a considerable tem- 
perature. Dr. Goddard, at whose request this ethereal ex- 
tract was made, has found its therapeutical effects to fully 
answer his expectations, and feels assured that the drug is 
