ADULTERATIONS in baker's bread may be detected, by mixing it with lemon juice or strong vinegar: if the bread contains chalk, whiting, or any other alkali, it will immediately produce a fermentation. If ashes, alum, bones, or jalap be suspected, slice the crumb of a loaf very thin, set it over the fire with water, and let it boil gently a long time. Take it off, pour the water into a vessel, and let it stand till nearly cold; then pour it gently out, and in the sediment will be seen the ingredients which have been mixed. The alum will be dissolved in the water, and may be extracted from it. If jalap has been used, it will form a thick film on the top, and the heavy ingredients will sink to the bottom. See Beer, Flour, Spirits, Wine.
AGUE. Persons afflicted with the ague ought in the first instance to take an emetic, and a little opening medicine. During the shaking fits, drink plenty of warm gruel, and afterwards take some powder of bark steeped in red wine. Or mix thirty grains of snake root, forty of wormwood, and half an ounce of jesuit's bark powdered, in half a pint of port wine: put the whole into a bottle, and shake it well together. Take one fourth part first in the morning, and another at bed time, when the fit is over, and let the dose be often repeated, to prevent a return of the complaint. If this should not succeed, mix a quarter of an ounce each of finely powdered Peruvian bark, grains of paradise, and long pepper, in a quarter of a pound of treacle. Take a third part of it as soon as the cold fit begins, and wash it down with a glass of brandy. As the cold fit goes off, and the fever approaches, take a second third part, with the like quantity of brandy; and on the following morning fasting, swallow the remainder, with the same quantity of brandy as before. Three doses of this excellent electuary have cured hundreds of persons, and seldom been known to fail. To children under nine years of age, only half the above quantity must be given. Try also the following experiment. When the cold fit is on, take an egg beaten up in a glass of brandy, and go to bed directly. This very simple recipe has proved successful in a number of instances, where more celebrated preparations have failed.
AIR. Few persons are sufficiently aware, that an unwholesome air is the common cause of disease. They generally pay some attention to what they eat and drink, but seldom regard what goes into the lungs, though the latter often proves more fatal than the former. Air vitiated by the different processes of respiration, combustion, and putrefaction, or which is suffered to stagnate, is highly injurious to health, and productive of contagious disorders. Whatever greatly alters its degree of heat or cold, also renders it unwholesome. If too hot, it produces bilious and inflammatory affections: if too cold, it obstructs perspiration, and occasions rheumatism, coughs, and colds, and other diseases of the throat and breast. A damp air disposes the body to agues, intermitting fevers, and dropsies, and should be studiously avoided. Some careful housewives, for the sake of bright and polished stoves, frequently expose the health of the family in an improper manner; but fires should always be made, if in the height of summer, when the weather is wet or cold, to render the air wholesome; and let the fire-irons take care of themselves. No house can be wholesome, unless the air has a free passage through it: dwellings ought therefore to be daily ventilated, by opening the windows and admitting a current of fresh air into every room. Instead of making up beds as soon as people rise out of them, a practice much too common, they ought to be turned down, and exposed to dry fresh air from the open windows. This would expel any noxious vapours, and promote the health of the family. Houses surrounded with high walls, trees, or plantations, are rendered unwholesome. Wood, not only obstructs the free current of air, but sends forth exhalations, which render it damp and unhealthy. Houses situated on low ground, or near lakes and ponds of stagnant water, are the same: the air is charged with putrid exhalations, which produce the most malignant effects. Persons obliged to occupy such situations should live well, and pay the strictest regard to cleanliness. The effluvia arising from church-yards and other burying grounds is very infectious; and parish churches, in which many corpses are interred, become tainted with an atmosphere so corrupt, especially in the spring, when the ground begins to grow warm, that it is one of the principal sources of putrid fevers, which so often prevail at that season of the year. Such places ought to be kept perfectly clean, and frequently ventilated, by opening opposite doors and windows; and no human dwelling should be allowed in the immediate vicinity of a burying ground. – The air of large towns and cities is greatly contaminated, by being repeatedly respired; by the vapours arising from dirty streets, the smoke of chimneys, and the innumerable putrid substances occasioned by the crowd of inhabitants. Persons of a delicate habit should avoid cities as they would the plague; or if this be impracticable, they should go abroad as much as possible, frequently admit fresh air into their rooms, and be careful to keep them very clean. If they can sleep in the country, so much the better, as breathing free air in the night will in some degree make up for the want of it in the day time. Air which stagnates in mines, wells, and cellars, is extremely noxious; it kills nearly as quick as lightning, and ought therefore to be carefully avoided. Accidents occasioned by foul air might often be prevented, by only letting down into such places a lighted candle, and forbearing to enter when it is perceived to go out. The foul air may be expelled by leaving the place open a sufficient time, or pouring into it a quantity of boiling water. Introducing fresh air into confined rooms and places, by means of