ESSENCES 



147 



also in the sugar-beet root, and is manufactured artificially 

 from oil of cloves and from pine wood. But these artificial 

 products are inferior in flavor to the natural product extracted 

 from the vanilla "bean." 



^m "-^'^ ■i.^.'-'? /^* ' 



FiG. 146, I. — Peppermint {MentJin piperita, Mint Family, Lahiatw). 

 Flowering top. (Baillon.) — A perennial herb, growing 1 m. tall, aro- 

 matic; leaves bearing numerous minute volatile oil glands; flowers pale 

 purplish; nutlets seldom formed. 



The oil of wintergreen is likewise manufactured artificiall}'', 

 but in this case the artificial product is indistinguishable 

 from the natural one. Unlike most oils this sinks in water, 

 being indeed the heaviest known of volatile oils. It is a 



