QUA—QUA : 254 
rouba bark and wood—Quassia Simarouba, Cortex. U.S. 
Simarouba bark. 
Native of South America, and the West Indies. 
Quauitizs. Bark inodorous, bitter, not disagreeable taste— 
water and alcoho) take up all its virtues, at 68° F. better 
than at boiling heat. : 
Mrpicat Prorertizs anp Uszs. Tonic, perhaps a peculiar 
one—I have used it frequently, particularly at sea, in 
dysenteric diseases, with more advantage than any other 
tonic ; first introduced in Paris in 1718, as a remedy for 
» that disease. Is used also in diarrhea and dyspeptic af- 
fections. Dose, in substance, }j to 33s; best given in in- 
fusion, which is the commonest form. ~ 
Orrrc. Pree. Jnfusum Simaroube. L. & U.S. 
Species 2—QUASSIA EXCELSA. Lofty Quassia, 
Cabinet specimens, Jeff, Coll. Nos. 571 and 572—figure of 
tree, No, 573. . 
Orricryat. Quassia Lignum. B.D. L.& U.S. The wood 
of Quassia, (called Quassia.) 
Native of Jamaica, and the Caribbean Islands, where it is 
called Bitter Ash. eae 
~Quatitizs. Inodorous and intensely bitter, wine-yellow. 
Alcohol and water extract its bitterness, and evaporated _ 
to dryness, leaves a brown-yellow sub-transpurent brittle 
extract, called Quwassin, being considered a peculiar proxi- 
4 
mate principle of the wood, embodying its bitterness. Mr. 
A. T, Thompson is of opinion it contains resin. 
Menicat Prorerrizs anv Uses. A pute intense bitter tonic, 
used in every case where such a medicine sipie be A as 
er—it is extensively prescribed every where, and is kept 
Ben he 6 shavings, raspings, Baad Ido not 
think it ought ever to be given in substance—infusion, or 
decoction, is the best form. The tincture is adimissit 
where the vinous or alcoholic menstrutim may not be pre 
judicial. Mr. A. T. Thompson says, he found it servicea- 
ble combined with nitric acid, in typhus and in fluor albus. 
This union I have not used in those diseases, but have in 
numerous others; and to restore tone to the system in 
tedious convalescence from fevers, 1 have found nothing 
equal to this combination. With cretaceous powder, and 
ginger, it has been given for gout—Z j or ij of the rasp- 
ings, will be sufficient for (ij water, in decoction, and for 
Ojss in infusion. A wine-glass ine-glass full, the dose of either—y 
strong, it is apt to prove intolerable to the stomach, = 
Orric rc : P ‘sus P. Infi aha siz. Ao & iis Ss. Ti for 
wassie F E. D. & UL 
eh. We BE 
3. Infusum Quassize cum sudph. 
