TO EXTRACT THE PERFUME OF FLOWERS.—Procure a quantity of the petals of any flower which has an agreeable flavour; card thin layers of cotton wool, which dip into the finest Florence oil; sprinkle a small quantity of fine salt on the flowers, and place layers of cotton and flowers alternately, until an earthen or wide-mouthed glass vessel is quite full. Tie the top close with a bladder, and lay the vessel in a south aspect, exposed to the heat of the sun, and in fifteen days, when opened, a fragrant oil may be squeezed away from the whole mass; little inferior (if roses are made use of) to the dear and highly-valued otto, or odour of roses. ESSENTIA ODORIFERA.—Take of musk grain, ten grains; civet, five grains; Peruvian balsam, twelve grains; oil of cloves, four drops; oil of rhodium, two drops; sub-carbonate of potash, half a drachm; rectified spirits of wine, two ounces. Digest them together in a close vessel, with a heat equal to that of the sun in summer (78 deg. Fahr.) for several days, and afterwards pour off the essence for use. This is an exquisite perfume, and a single drop gives a fine flavour to many ounces of other liquors.—K. A VERY PLEASANT PERFUME, AND ALSO PREVENTIVE AGAINST MOTHS.—Take of cloves, caraway seeds, nutmegs, mace, cinnamon, and Tonquin beans, of each one ounce; then add as much Florentine orris-root as will equal the other ingredients put together. Grind the whole well to powder, and then put it in little bags, among your clothes, &c.—A. L. TO LOOSEN THE STOPPERS OF SMELLING-BOTTLES.—If the stopper is firmly fixed by means of the salts contained within the bottle, do not attempt to strike the stopper, but add as much citric acid to water as it will take up, thus making what chemists term a saturated solution; or else pour some vinegar into a tumbler, and immerse the bottle in the solution or vinegar. In the former case a citrate of ammonia will be formed, and in the latter case an acetate of ammonia. After the bottle has remained in the tumbler a short time, remove it to a basin of warm water, and it will soon be released.—K. CLEANING COMBS.—I beg leave to offer a plan that will do away with the “cleaning of a comb,” or, at least, in a great measure lessen that disagreeable duty. Cut a bit of coarse flannel the size of the comb (small-tooth comb I mean) and before you use it work the flannel on to one edge of the comb, push it about half-way up the teeth; when you have used it, draw the flannel off and the comb will easily be made perfectly clean by being rinsed in water. I keep bits of flannel cut always with my comb.—S. K. Y. TO WASH HAIR-BRUSHES.—Never use soap. Take a piece of soda, dissolve it in warm water, stand the brush in it, taking care that the water only covers the bristles; it will almost immediately become white and clean; stand it to dry in the open air with the bristles downwards, and it will be found to be as firm as a new brush.—A RIGID ECONOMIST, _Guernsey_.