FORMULÆ FOR SOME OF THE PREPARATIONS USED IN THE ABOVE RECIPES.

Greenhow's Aromatic Tincture of Guaiacum.—Take of guaiacum, cloves and cinnamon, each, in powder, one ounce; best brandy, two pints. Macerate for fourteen days and filter.

Dose.—From a tea-spoonful to a table-spoonful, in sweetened water, every fifteen or twenty minutes.—Am. Dis.

Compound Cajeput Mixture—Hunn's Drops.—Take of oils of cajeput, cloves, peppermint, and anise, each, one fluid ounce; rectified alcohol, four ounces. Dissolve the oils in the alcohol.

The ordinary dose is from ten drops to half a tea-spoonful; to be given in simple syrup, mucilage of slippery-elm, or in hot brandy and water sweetened.—Am. Dis.

Fluid Extract of Rhubarb and Potassa.—Take of the root of the best India rhubarb, in powder, and bicarbonate of potassa, of each, one ounce; cassia or cinnamon, and golden seal, in powder, of each, half an ounce; boiling water, one-half pint. Macerate the roots and seeds for an hour; strain and dissolve the potassa in the strained liquor when nearly cold, and add one gill best brandy; essence of peppermint, one tea-spoonful, and refined sugar, two ounces.

Dose.—From one to two tea-spoonfuls as often as necessary.—Am. Dis.

Tinc. Xanthoxyli, or Tincture of Prickly-ash Berries.—Take of prickly-ash berries eight ounces; diluted alcohol, two pints. Form into a tincture by maceration, or displacement, and make two pints of tincture.

The ordinary dose is twenty or thirty drops. In cholera, from a tea-spoonful to one or two table-spoonfuls, according to circumstances.—Am. Dis.

Tincture of Oil of Monarda—Essence of Monarda, or Horsemint.—Take of oil of horsemint one fluid ounce; alcohol, nine fluid ounces, Imp. Meas. Mix with agitation.

Dose.—From ten to twenty drops on sugar, or in sweetened water.—Am. Dis.

Elixir of Opium, prepared on the base of Dupuy's formula is less objectionable as an ingredient in recipes for an advanced stage of cholera than other preparations of that drug.