Air-Bath, in its general acceptation, implies a contrivance for the reception of fresh air. AH persons, but especially children, ought to resort, at least for a short time, every day to this method of enjoying the salubrious influence of that universal agent.

To persons of a robust and vigorous habit, we Cannot recommend a more bracing and pleasant remedy. In this place, however, we snail give only an historical sketch of the simple air-bath, without expatiating on its nature and effects. Its benefits were first pointed out by the late illustrious Franklin, who describes it with his peculiar simplicity, in the following words: "Every morning at day-break I get out of bed, and pass half an hour, or an hour, in my chamber, according to the season, in writing or reading, without any clothes; and this seems rather pleasant than otherwise : and if I return to bed, as is sometimes the case, before I dress myself, I have an addition to my night's rest of one or two hours sleep, sweeter than you can imagine."

The late Lord MoNboddo, aman of an amiable, though eccentric character, was so decided an advocate for the air-bath, that he accustomed himself to take violent exercise, when quite undressed, in the open air. In this practice he persevered till within a few years of his death (which happened in May, 1709); he also anointed his body, like the ancients, with aromatic oils, especially in a moist and heavy atmos-phere.—Whether by these singular expedients, or by a frugal and philosophic mode of life, he enjoyed that extraordinary degree of mental serenity and bodily energy, which prolonged his existence to the 90th year of age, we shall not pretend to decide.