℞--means take thou. M.--Misce, mix. Fiat--make. Ad.--add, to make. Et.--means and. Sig.--Signa, label, or write thus. Numerus--number. O.--Octarius, a pint. Ter.--thrice. C. or Cong.--Congius, gallon. Dies.--diem, day. Q. S.--Quantum sufficiat. Sufficient quantity. Bene--well. q. s. ad.--quantity sufficient to make certain amount. Q. h.--quaqua-hora, every hour. aa.--ana. Of each. S.--Semis, means half. S. S.--Semi or Semissis means one-half. Cum.--with. Stat.--statim, immediately. B. I. D.--Bis in die. Twice daily. T. I. D., or T. D.--three times daily, Ter in die. Q. D.--quarter in die; four times daily. P. Æ.--Partes æquales, equal parts. Div.--divide. Gtt.--Guttæ, drops. Grs.--Grains. ʒ--Drachma, dram. ℥--Uncia, ounce. M.--Minims about a drop. ℈--Scruple. M. ft.--mistura fiat; let a mixture be made. Pil.--Pilula; pill. Destil.--Destilla; distill. Liq.--liquor a solution. Pulv.--Pulvis; powder. Fl.--fluidus, fluid. Bol.--Bolus, large pill. Cola--strain. Filtra--filter. Capsula--cap. A capsule. Charta--chart. A paper (medicated). Dosis--Dos. A dose. Massa--Mass. A pill--mass. Unguentum--Ungt. An ointment. Syrups--Syr. A syrup. Vinum.--Vin. A wine. Aqua fontana--Aq. font.--Spring water. Aqua destillata--Aq. dest.--Distilled water. ACIDUM BORICUM--BORACIC ACID--BORIC ACID DERIVATION.--Made by evaporation and crystallization of a solution obtained by passing steam issuing from rocks in volcanic regions of Italy, through water; or by the action of hydrochloric or sulphuric acids upon borax. Recovered by filtration and recrystallization. PROPERTIES.--Transparent colorless scales, of a somewhat pearly luster, six-sided tricline crystals, or a light white, very fine powder, slightly unctuous to the touch; odorless, having a faintly bitterish taste, and permanent in air. Soluble in water, alcohol, glycerine, etc. DOSE.--Horses and cattle, 2 to 4 drs.; foals and calves, 20 to 30 grs.; sheep and pigs, 30 to 40 grs.; dogs, 5 to 20 grs. PREPARATIONS GLYCERITUM BOROGLYCERINI--GLYCERITE OF BOROGLYCERIN Composed of boric acid, 310 parts; glycerin to make 1,000; prepared by heat (303° F.). ACTIONS.--Boric acid is a non-volatile, non-irritating antiseptic, deodorant and astringent, it arrests fermentation of minute organisms, free of irritating effects in solution, when applied to wounds; it lessens suppuration, and is as effective as carbolic acid; can be used in any strength from the pure powder or saturated solution to the mildest form.