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2455. Beverage for Hot Weather. The yolk of eggs beaten up, lump sugar (to taste), Rhenish wine or not, citric acid powdered, or tartaric acid (small quantity, exact quantity soon found); one or two drops of essence of lemon on a lump of sugar, to make it mix readily with the water; one quart of water. This is really an excellent, agreeable, and, without the wine, an inexpensive beverage. [LITTLE COMFORTS BEGET MUCH HAPPINESS.] 2456. To Ascertain the State of the Lungs. Persons desirous of ascertaining the true state of their lungs should draw in as much breath as they conveniently can, they are then to count as far as they are able, in a slow and audible voice, without drawing in more breath. The number of seconds they can continue counting must be carefully observed; in cases of consumption the time does not exceed ten, and is frequently less than six seconds; in pleurisy and pneumonia it ranges from nine to four seconds. When the lungs are in a sound condition, the time will range as high as from twenty to thirty-five seconds. 2457. To Avoid Catching Cold. Accustom yourself to the use of sponging with cold water every morning on first getting out of bed. It should be followed by a good deal of rubbing with a wet towel. It has considerable effect in giving tone to the skin, and maintaining a proper action in it, and thus proves a safeguard to the injurious influence of cold and sudden changes of temperature. Sir Astley Cooper said,