The reason is that extract of cannabis indica is almost insoluble in a menstruum such as that found in Bromidia.
Brande resolved this resin into two others—one soluble in ether; the other insoluble in that menstruum.
The first menstruum is commonly employed for croton oil on the Continent; the second, for that of ergot of rye.
By this means every portion of the ingredients will be equally exposed to the action of the menstruum.
Some parties have recommended quince juice as the menstruum.
To concentrate or strengthen a solution by the expulsion of some of the fluid matter that forms the menstruum;—5.
In that of the taverns and gin-shops the menstruum is usually gin, or plain spirit reduced to a corresponding strength.
Free from grit, and wholly soluble in 20 parts of the menstruum employed in its preparation, forming a nearly clear solution.
When spirit is the menstruum, the liquid receives the name of alcoholic solution, spirit, or tincture.
Al′kahest, the so-called universal solvent or menstruum of the alchemists.
menstruum men·stru·um (měn'strōō-əm)
n. pl. men·stru·ums or men·stru·a (-strōō-ə)
A solvent, especially one used in extracting compounds from plant and animal tissues and preparing drugs.