AND FHAllMACOPCEIA. 529 



vent Its being readily digested, or proving so nutritious as it 

 Avould do, were it not so medicated. 



Some horses, however, eat their corn very readily when mixed 

 with powder; and to such it may be given without incon- 

 venience. There is another objection to this mode of givino- 

 medicine, which is the difficulty of ascertaining whether the 

 whole or a part, and how much of the powder that is mixed with 

 the corn, is taken. But this may in a great measure be done 

 away, by sprinkling the corn witli water, and mixing the powder 

 with it very carefully. As we have before observed, whenever 

 a horse appears unwilling to eat his corn thus medicated, the 

 medicine should be given in some other form. The medicines 

 best suited to this purpose are antimony, sulphur, resin, emetic 

 tartar, nitre, caraway seeds, anise-seeds, &c. Medicines that are 

 given In the form of powder should be finely sifted, or levigated; 

 and, when kept in that form, should be preserved in a well- 

 corked bottle. 



PRECIPITATE, EED (by nitric acidX — Hydrargyri 

 Nitrico-Oxydum. This is the nitric oxide of mercury, or red 

 nitrated quicksilver, and is useful as a mild caustic or de- 

 tergent, and has a good effect in foul ulcers. It may be used 

 either alone, finely powdered and sprinkled on the affected part, 

 or mixed with various ointments. (See Detergents.) It Is 

 made from quicksilver and nitrous acid, but is considerably 

 weaker than a solution of that metal in nitrous acid. It becomes, 

 however, a strong and very efficacious caustic, when dissolved in 

 nitrous acid. This solution may also be mixed with unctuous 

 substances, forming with them good detergent ointments; or it 

 may be diluted with water, so as to form a detergent lotion of 

 considerable efficacy. 



PROOF SPIRIT. — Spiritus Tenuior. Equal parts of 

 rectified spirit of wine and water. See Alcohol. 



PURGATIVES. See Cathartics. 



QUASSIA. — Quassia. There are two species of quassia, 

 the quassia simaruha and excelsa. The first is a native of South 

 America and the West Indian Islands; the last of Surinam, Ja- 

 maica, and the Caribbean Isles. The bark of the foi*mer and 

 the wood of the latter are generally employed In medicine. 

 Both of them are powerful bitters and extremely efficacious in 

 cases of weakness of the stomach and bowels. They may be 

 given in powder, in doses from one to two drachms, joined with 

 ginger, or some other stimulant, and a small quantity of car- 

 bonate of soda or potash. 



QUICKSILVER. — Hydrargyrum. This metal and its pre- 

 parations have been noticed under the head Meiicury. 



QUININE, SULPHATE OF. — Quinince Sulphas. See 

 Bark. 



M M 



