EAU DE COLOGNE, de ko-lon' (Fr., Cologne water). A perfume invented in northern Italy by one of the Farina family, who subsequently settled in Cologne. It is now made by a num ber of persons bearing the original patronymic. who are residents of Cologne. as well as by per fmne-makers all over the world. It consists essentially of pure distilled alcohol with various aromatic oils so blended as to yield a refreshing and grateful odor. Various formulas have been given for the original perfume. and among these is the following, originally published in the journal of the North German Apothecaries' As sociation: Dissolve 2 ounces of purified benzoin, 4 ounces of oil of lavender. and 2 minces of oil of rosemary in 9 gallons of 95 per cent. alco hol; to this solution add successively of the oils of neroli, neroli petit-grain, and lemon, each 1 mimes, and of the oils of sweet orange peel, limes. and Iwrg.amot. each ounces. together with tincture of rose-geranium flowers, sufficient to suit the taste: maeerate for several weeks and then bottle. An excellent imitation is made by
taking 0 gallons of 95 per cent. alcohol, oil of oran7e. and oil of citron each S ounces. oil of neroli 4 ounces. oil of rose,nary and oil of ber gamot each 2 ounces. mix by stirring. and allow to stand until the solution is complete. It is claimed that the best foreign eaux de Cologne are obtained by distillation, the purpose of whieh is to secure a perfect blending of the perfumes, but in this country the same result is generally accomplished by allowing the mixture to stand until the desired effect is obtained.
EAU DE JAVELLE,.zhirvil' (Fr., Jayelle water. from Jurclk, near Paris), or JAVELLE WATER. A solution of hypo•hlorite of potash, which is used to remove stains from linen or muslin and from white marble. Practically it is adulterated with bicarbonate of potash. It is poisonous.