This section is from the book "Recent Materia Medica: Notes On Their Origin And Therapeutics", by F. Harwood Lescher. Also available from Amazon: Recent materia medica.
Fluid.
Many are officinal in the U. S. A. Pharmacopoeia: they represent measure for weight, 1 gramme of the powdered drug being represented by 1 cubic centimetre of the fluid extract: each minim representing
95/100 grain of the powdered drug.
"As it is, that physician is always safest who orders his drugs in the forms which are best made and which keep best, and all these conditions are best fulfilled by the fluid extracts. That so many physicians are doing this is probably the reason why tinctures are so rapidly following the decoctions, infusions, and wines out of use with those in this country, who think most about their materia medica." - Ephemeris Squibb - New York, 1884, p. 655.
 
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