Essential Oils. 191 



a half yield lib. of oil. — Expressed oil of cloves. From fresh 

 mother cloves, antophylli. 



Oil of worm weed, Oleum chenopodiif P. U. S. From C. 

 anthelminticum. 



Oil of Virginian pennyroyal, O. cunilce, P. U. S. 



Oil of cassia, O. cassice. From cassia buds; stimulant, sto- 

 machic ; 301b. yield 4 oz. 



Distilled oil of camomile flowers, O. essentiale chamce- 

 meli fiorum^ O. anthemidis cceruleum. From the flowers, sto- 

 machic dose mv. to mx. ; lib. yields a drachm, 82lb. yield ^xiij, 

 and at another time 3xviij ; it is of a fine blue, even if distilled 

 in glass vessels. 



Distilled oil of camomile, O. anthemidis viride. From the 

 herb, green, stomachic. 



Oil of cinnamon, Oleum cinnamomi. From the fresh bark, 

 distilled with sea water ; 111b. yield 1 oz. of oil ; from Ceylon. 



English oil of cinnamon. From the bark of inferior cinna- 

 mon, imported under the name of cassia, distilled with salt water, 

 and cohobated : lib. yields from 3j lo 3jss. 



Essence of cedrat, O^lio del cedro, Oleum cedri, O. citri 

 Jinum. From the yellow part of citron peel ; colourless, very 

 thin and fragrant.— 2. The second oil obtained by the distillation 

 of the yellow part of citron peel ; greenish ; 100 citrons yield 

 1 oz. of the white essence, and half an oz. of the greenish.— 

 3. From the yellow part of citron peel by expression. 



Essence of citrons, Oleum citri. From the lees left in the 

 casks of citron juice ; clear, fragrant, greenish : 501b. of lees yield, 

 by distillation, 31b. of essence. — 2. From whole citron peels by 

 expression ; very fragrant, but does not keep so well as the 

 distilled oil. — S, From the cake left on pressing citron peels, by 

 distillation with water; thick. 



Rectiffed oil of citrons. The pressed oil of the whole 

 peels, distilled until 3 oz. out of 5 are come over, white, very 

 fragrant 



Oil oi (I .MM IN seed, O. cymini. 



Oil of clary flowers. 1301b. fresh yield 3 oz. and a half; 

 used in perfumery for soap ? 



Oil of partridge berry, Oleum r/rndthccr in, P. U. S. 



Oleum funiculi. IVom sweet fennel seeds; eartninative : 

 1 bushel yielded 18 oz. 



Oil of hops. Collected during the boiling of hops in beer ; used 

 to increase the flavour of other hops by rubbing it amongst them. 



