Ague is a general term for those fevers which have periodical intermissions, and are. specifically denominated quotidian, Urtian, quartan, according to the various periods at which the febrile paroxysm returns.

Agues arc, in some degree, en-demial, or peculiar to certain situations. In the county of Kent, and the fens of Lincolnshire, they have become proverbial. They more frequently attack men than women, the young than the old, the poor than the rich: sufficient reasons may easily be assigned for this peculiarity. The habits and employments of the male sex, especially at the time of youth, subject them to causes which more particularly predispose them to that disease, such as cold moist air, wet feet, long exposure to rain, and wet clothes; whereas females, and the aged of both sexes, keep more within doors.

From this statement it may readily be inferred, that persons v. ho reside in certain districts of a country, are more frequently affected with these feversj than those enjoying a purer atmosphere, and inhabiting a drier soil.

That the poor are more liable to agues than the rich, may in some measure be ascribed to the above-mentioned causes. The difference of their diet, and clothing, may also be supposed to possess an influence in admitting or resisting this discase

The symptoms generally observed during the cold fit in agues, arc, strong shiverings, succeeded by great heat, and the usual concomitants of fever, such as thirst, quick pulse, etc. The hot fit is terminated by a perspiration more or less profuse, according to the habit and constitution of the patient.

Several other symptoms occasionally present themselves in the different stages of the disease. The cold fit is often preceded by torpor, languor, lassitude, yawning, stretching attended with nausea, vomiting, and some Limes, in weak habits, with diarrhoea. The hot fit is ushered in with languor; a flaccid state of the whole body, but especially of the limbs; a general sense of soreness, as if the parts were bruised; a quick pulsation of the arteries, sometime* attended with throbbings and pain in the head. The duration of the paroxysm, before it terminates in the ting fit, is irregular in respect to time, seldom subsides in less than six hours, and never exceeds twelve. The urine which the patient evacuates in the last stage, commonly deposits a reddish sediment. During the interval of each paroxysm, the patient apparently enjoys as good a state of health, as previous to the attack of this disease. Never-theless, if it be suffered to continue long, it weakens and exhausts the {Constitution, and occasions such ravages as medicine cannot easily re-; producing general debility, obstructions in the viscera, jaundice, dropsy, etc.

We shall proceed to point out a few of those remedies which have been found effectual in this disease.

A tea-spoonful of powdered snake-root mixed with a glass of brandy and water, and taken before the approach of the. fit, keeping the body warm to induce perspiration, has been of considerable service. The following remedy is also said to have been successfully employed in agues:

Two spoonfuls of the juice of sage, mixed with an equal quantity of vinegar, and taken at the approach of the fit.

The regular method of eradicating an ague, after the disease has been properly ushered in, by a few successive paroxysms, consists in cleansing the first passages by proper laxatives and emetics, as occasion may require.

The patient, during the fit, should drink freely of water-gruel, and other warm diluents. The Peruvian bark may then be administered in any form best suited to the patient's stomach, either in decoction, infusion, tincture, or in powder mixed with Port wine. The last mode, as being the most efficacious, ought, when practicable, always to be preferred.

Dr. LvsoNs has observed, that his patients derived great benefit from the use of the snake-root combined with bark. His recipe is as follows: two scruples of bark and one of snake-root. He says, that two or three doses rarely fail to arrest the progress of a distinct tertian, or quartan ague. Should a farther repetition of this remedy be requisite, it will be attended with this advantage, that the disorder will be less likely to return, than if it were stopped by the bark alone.

Repeated shocks of the electrical fluid have been said to cure agues ; but this is a precarious and hazardous practice. Even that sovereign remedy, the bark, has sometimes been known to fail, and yet the patient has been cured by common spiders; three or four large ones mixed up with honey, their legs cut off, and the bodies only retained.

The folly of placing any dependence upon charms, and such occult modes of curing this disease, needs no other reprobation than to say, that they have been adopted by the ignorant multitude, and that they have more frequently failed, than succeeded, in vanquishing an obstinate intermittent.

Lastly, if no other means be found adequate to the inveteracy of this complaint, we cannot, injustice to Dr. Fowler, omit to mention his mineral solution, or ague-drops, so well known to all our apothe--, that they require no farther description. Yet, convinced of their violent effects on the human system, we seriously recommend the use of the remedies above specified, before arsenic be employed as the ultimate resource.