Not all aromatics can be made into sachet powders; it is well known that the delightful odor of violets changes into a positively disagreeable smell when the flowers are dried, and the same remark applies to the blossoms of the lily of the valley, mignonette, lily, and most of our fragrant plants. On the other hand, some portions of plants, especially those in which the odorous principle is contained not only in the flower but in all parts of the plant, as in the mints, sage, and most Labiatæ, remain fragrant for a long time after drying and hence can be employed for sachets. Besides the plants named, lavender, rose leaves, the leaves of the lemon and orange tree, Acacia farnesiana, patchouly herb, and some other plants continue fragrant after drying. Any vegetable substance to be used for sachets must be completely dried so as to prevent mould. The drying should be effected in a warm, shady place, sometimes in heated chambers; direct sunlight and excessive heat injure the strength of the odor, a portion of the aromatics becoming resinified and volatilized. If artificial heat is employed, a temperature between 40 and 45° C. (104-113° F.) is most suitable. The external form of this class of preparations varies of course with the public for which it is intended. Expensive sachets are sold in silk bags with different ornamentation; those intended for the Orient are generally put up as small silk cushions richly ornamented with gold and colors to suit Oriental taste. Cheap sachets are sold in envelopes or in round boxes. It is customary to have the ingredients ground or finely powdered, for which purpose small hand-mills will generally suffice. CHAPTER XVII. FORMULAS FOR DRY PERFUMES (SACHETS). CEYLON SACHET POWDER. Mace 23 oz. Patchouly 28 oz. Vetiver root 35 oz. Oil of orange peel 1¾ oz. Oil of peppermint 3½ oz. CYPRIAN SACHET POWDER. Cedar wood 2 lb. Rhodium 2 lb. Santal wood 2 lb. Oil of rhodium ½ oz. The oil is mixed with the finely powdered or rasped woods and distributed in the mass by trituration. FIELD FLOWER SACHET POWDER. Calamus root 1 lb. Caraway ½ lb. Lavender 1 lb. Marjoram ½ lb. Musk 30 grains. Cloves 2¾ oz. Peppermint ½ lb. Rose leaves 1 lb. Rosemary 3½ oz. Thyme ½ lb. FRANGIPANNI SACHET POWDER. Musk 1 oz. Sage ½ lb. Santal wood ½ lb. Orris root 6 lb. Vetiver ½ lb. Civet ¼ oz. Oil of neroli 75 grains. Oil of santal 75 grains. Oil of rhodium 75 grains. HELIOTROPE SACHET POWDER. Musk ½ oz. Rose leaves 2 lb. Tonka beans 1 lb. Vanilla ½ lb. Orris root 4 lb. Oil of bitter almond 30 grains. INDIAN SACHET POWDER.