270 



AURANTIE.E 



with half their weight of common salt. They are about 12 mm. (H in.) 

 long, with small, cup-shaped calyx and white, rather fleshy petals. Occa- 

 sionally used as a stimulant and antispasmodic, but principally for pre- 

 paring orange-flower water and the volatile oil. 



281 a. OLEUM AURANTII FLORUM, U.S. VI OLEUM NEROLI. A thin, yellowish, or 

 brownish-yellow volatile oil, very fragrant. Used as a flavor and as a perfume. 

 Neroli is the predominant odor in Farina Cologne. 



THE LEMON PRODUCTS 



282. LIMONIS SUCCUS THE JUICE. LEMON JUICE (Succus Citri, N. P.). 

 The freshly expressed juice of the ripe fruit of Cit'rus medica Linne" (C. 



FIG. 152. Citrus limonum Branch. 



limonum Risso, U.S.P. 1900). A slightly turbid, yellowish liquid having the 

 odor of lemon, due to the presence of some of the volatile oil from the rind; 

 taste acid, often slightly bitter. It contains about 7 per cent, of free citric 

 acid, also phosphoric and malic acids. Refrigerant and antiscorbutic; used in 

 the form of lemonade, or in effervescing draughts. Dose: I fl. oz. (30 mils). 



Lemon juice should contain from 7 to 9 per cent, of citric acid. It 

 should be free from added preservatives; preserved by sterilization. 

 For tests see U.S.P. VIII. Lemon juice contains from 0.5 to i per cent, 

 of gum and sugar. 



