In this season of the year, a few hints on the temperature of the body prior to cold immersion, may not unaptly be furnished. It is commonly supposed, that if a person have made himself warm with walking, or any other exercise, he must wait till he becomes cooled before he should plunge into the cold water. Dr. Currie, however, has shown that this is an erroneous idea, and that in the earlier stages of exercise, before profuse perspiration has dissipated the heat, and fatigue debilitated the living power, nothing is more safe, according to his experience, than the cold bath. This is so true, that the same author constantly directed infirm persons to use such a degree of exercise before emersion, as might produce increased action of the vascular system, with some increase of heat; and thus secure a force of re-action under the shock, which otherwise might not always take place. The popular opinion, that it is safest to go perfectly cool into the water, is founded on erroneous notions, and is sometimes productive of injurious consequences. Thus, persons heated and beginning to perspire, often think it necessary to wait on the edge of the bath until they are perfectly cooled. * * * * * USEFUL DOMESTIC HINTS * * * * * TAINTED MEAT Meat tainted to an extreme degree may be speedily restored by washing it in cold water, and afterwards in strong camomile tea; after which it may be sprinkled with salt, and used the following day; or if steeped and well washed in beer, it will make pure and sweet soup even after being fly-blown. TO BREW THREE BARRELS OF PORTER. Take one quarter of high-dried malt, with one or two pecks of patent malt; mash in the same manner as directed for beer. Add the following ingredients: eight pounds of good hops, one pound of liquorice root, two pounds of Spanish juice, half a pound of ground ginger, one pound of salt, eight ounces of hartshorn shavings, and four ounces of porter extract.