. A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures. Botany; Botany, Economic; 1855. THE ALOE. 5S7 subacid, pleasant flavour, and is formed witli sugar into a preserve. Two varieties, the hundred-leaved, and red or common rose, are used in medicine. The hun- dred-leaved is so called from tlie number of its petals, v\rhich are of a pale red or flesh colour. The red rose has larger and finer petals, and is of a deep crimson c
. A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures. Botany; Botany, Economic; 1855. THE ALOE. 5S7 subacid, pleasant flavour, and is formed witli sugar into a preserve. Two varieties, the hundred-leaved, and red or common rose, are used in medicine. The hun- dred-leaved is so called from tlie number of its petals, v\rhich are of a pale red or flesh colour. The red rose has larger and finer petals, and is of a deep crimson colour. The leaves of the latter are generally collected and dried, and are used for making the infusion of roses; they are more astringent than the former, but have less odour. An essential oil is obtained from the distillation of rose leaves, which possesses all the concentrated and delightful odour of the rose. It is well known under the name of attar, or oil of roses. It is chiefly made in India, where the rose grows in abundance. To produce this oil, forty pounds of the rose flowers, with their calyces, are put into a rude still with sixty pounds of water. The mass being well mixed, a gentle fire is put under the still; and when fumes begin to rise, the cap and pipe are properly fixed and luted. When the impregnated water begins to come over, the fire is lessened by gentle degrees, and the distillation is continued until thirty pounds of water are come over, which generally takes place in about four or five hours. This water is to be poured upon forty pounds of fresh roses, and thence are to be drawn from fifteen to twenty pounds of distilled water by the same process as before. It is then poured into pans of earthen ware, or of tinned metal, and left exposed to the fresh air for a night; the attar or essence wiU be found in the morning congealed, and swimming on the top of the water. It is then skimmed off, carefully freed fi:om any remaining drops of water, and then put i
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