LIXDERA. 71 



The leaves, after the separation of the oil, yielded about 15 per 

 cent, of alcoholic extract, from which were separated : — 



1^ — Chekenon C^^ H^^ Og, crystallizing in yellowish, 

 odourless and tasteless 6-sided prisms, soluble in alcohol, 

 ether, chloroform, benzene and acetic acid, and insoluble 

 in water. 



2^ — Chekcnin CjoHi^Og, crystallising in odourless and 

 tasteless yellowish rhombic tables, freely soluble in hot 

 alcohol and ether, and difficultly soluble in cold alcohol, 

 acetic acid, benzene, petroleum-ether and water. 



3° — Chekenetin C\ ^^ H- Og + H^ 0, obtained in yellowish, 

 almost olive-coloured crystals, probably allied to quei^cdin. 



4^ — " Cheken-bitter," an amorphous substance, soluble in 

 most solvents, and to which the bitter taste of Cheken 

 leaves is attributed. 



Lindera. 



An odour somewhat approaching to that of Myrtle has been 

 noticed in the oil of Lindera sericea Blume, a Lauraceous shrub 

 indigenous to and widely distributed in Japan, where it is known 

 nnder the name of " Kuro-moji," by reason of the blackish colour 

 of its bark. An essential oil distilled in Japan from the wood is 

 reported* to have a very fine aromatic and balsamic odour, and 

 might be useful in perfumery, especially as it is not expensive. 

 Its sp. gr. is 0-892 at 15^ C. It is composed of Limonene, 

 Dipentene, Terpineol and Carvol. A sample separated by 

 distillation into three fractions gave : — 



1^ — A fraction boiling between 180^ and 200^ C, having an 



agreeable odour of myrtle and coriander. 

 2^— A fraction boiling between 200^ and 220' C, of an 

 agreeable balsamic odour, recalling somewhat lign-aloe 

 oil, but finer and more fragrant. 

 3^ — A portion boiling between 220^ and 240° C, resembling 

 the carvol contahied in curled mint. 

 This essential is imported into Europe from Japan under the 

 name of " Kuro-moji " oil, and is said to be coming rapidly 



Schimmel and Co., Berichte, April, 1889. 



