Lixivium Tartari. 1745.
Oleum Tartari per deliquium, P.L. 1720.
Qualities. It is a clear, colourless, and inodorous solution; Spec. grav. 1·446. Dose, ♏︎x to fʒj. See Potassæ Sub-carbonas, and Form: 39, 41. The proportion of the salt contained in any quantity of the solution may be learnt by referring to the Dynameter.
LIRIODENDRON TULIPIFERA.
American Tulip bearing poplar.
Cortex.
[This is a native tree of America, and one of the most magnificent to be found in our forests—distinguished no less by its great altitude than by its beautiful foliage. It grows in almost every part of the United States. The part used in medicine is the Bark. This has a rough, fibrous appearance and is of a whitish colour. Its taste is bitter, astringent, and somewhat acrid and aromatic. By analysis, it yields gum, resin, muriatic acid, iron, mucus, &c. In its action on the system, it is decidedly tonic, exhibiting at the same time, to a certain extent, stimulant properties. If given in considerable quantities it acts also on the skin and kidneys. It has been used with advantage and success in intermittent fever, chronic rheumatism, gout, hysteria, and in debilitated states of the stomach. It may be given in substance, which is the most efficacious form of using it, in doses of from ʒss to ʒij.]
LOBELIA INFLATA.
Indian Tobacco. Herba.
[This is a plant very common in the United States. It has an acrid taste, very similar to that of green tobacco. By analysis it is found to contain an acrid principle, caoutchouc, and extractive. It is soluble both in water and alcohol. In its medicinal effects, the lobelia is analogous to common tobacco, and varies very much according to the dose in which it is given. It may thus be made to act either as an emetic, antispasmodic, expectorant, or diaphoretic. The diseases in which it has been found useful are asthma, croup, hooping cough, and catarrh. The tincture is the best preparation, and is prepared by digesting, for ten days, ℥ij of the plant in a pint of diluted alcohol. The dose is from ʒj to ʒiv—of the powder, the dose to prove emetic is from 10 to 20 grs.]