Dose, from four grains to one scruple, repeated at short intervals when used in small doses, and long intervals when employed in large doses.

Doses of the vatious preparations: -Camphor mixture, from half an ounce to three ounces; compound tincture of camphor {Paregoric Elixir), from fifteen minims to one drachm.

Caution. - When given in an overdose it acts as a poison, producing vomiting, giddiness, delirium, convul-sions, and sometimes death.

Mode of Exhibition - It may be rub-bed up with almond emulsion, or ma-cilage, or the yolk of eggs, and by this means suspended in water, or com< bined with chloroform as a mixture, in which form it is a valuable stimulant in cholera and other diseases. (See Mixtures.)

2692. AEther is a diffusablc stimulant, narcotic, and antispasmodic. Sulphuric AEther is used externally, both as a stimulant and a refrigerant.

In the former case its evaporation is prevented by covering a rag moistened with it with oiled silk, in order to relieve headache; and in the latter case it is allowed to evaporate, and thus produce coldness: hence it is applied over scalded surfaces by means of rags dipped in it.

As a local application, it has been found to afford almost instant relief in ear-ache, when combined with almond oil, and dropped into the ear.

Internally it is used as a stimulant and narcotic in low fevers and cases of great exhaustion.

Dose, from fifteen minims to one and a half drachm, repeated at short intervals, as its effects soon pa6S off. It is usually given in a little camphor julep or water.

2693. Nitric AEther is a refrigerant, diuretic, and anti-spasmodic, and is well known as "siceet spirit of nitre!"

Used externally, its evaporation relieves headache, and it is sometimes applied to burns.

Internally it is used to relieve nausea, flatulence, and thirst in fevers; also as a diuretic.

Dose from ten minims to one drachm.

2694. Compound Spirit of Sulphuric AEther is a very useful stimulant, narcotic and anti-spasmodic.

Used internally in cases of great exhaustion, attended with irritability.

Dose, from half a drachm to two drachms, in camphor julep. When combined with laudanum it prevents the nauseating effects of the opium and acts more beneficially as a nar-cotic.

2695. The Hop is a narcotic, tonic, and diuretic; it reduces the frequency of the pulse, and does not affect the nead, like- most anodynes.

Used e eternally, it acts as an anodyne and discutient, and is useful as a fomentation for painful tumours, rheumatic pains in the joints, and severe contusions. A pillow stuffed with hops acts as a narcotic.

When the powder is mixed with lard, it acts as an anodyne dressing in painful ulcers.

Dose, of the extract, from five grains to one scruple; of the tincture, from half a drachm to two drachms; of the powder, from three grains to one scruple; of the infusion, half an ounce to one and a half ounce.

2696. Opium is a stimulant, narcotic, and anodyne.

Used externally it acts almost as well as when taken into the stomach, and without affecting the head or causing nausea.

Applied to irritable ulcers in the form of tincture, it promotes their cure, and allays pain.

Cloths dipped in a strong solution, and applied over painful bruises, tumours, or inflamed joints, allay pain.

A small piece of solid opium stuffed into a hollow tooth relieves toothache.