CORTEX CINNAMOMI. CINNAMON. 159 



showing the stained walls. The parenchyma of the phloem 

 portion of the bark, the inner bark, is more irregular and 

 contorted, usually due to drying and to hardening of the 

 resin, which seems to be more abundant in this part of the 

 bark. 



The stone cells are frequent. They are very irregular 

 and characteristic. In the main, their diameters vary 

 between 25 and 50 microns. 



The medullary ray parenchyma is only infrequently 

 met with and presents no noteworthy characteristics. 

 It is usually richly pitted. 



The cells from the sieve tube portion of the bark are 

 much distorted, as a rule, but in a field of the whole slide 

 some long thin- walled elements may be found. 



Chemistry. — Tannic, oxalic, and malic acids, fixed 

 oil, volatile oils, a neutral crystalline substance resembling 

 frangulin; red, yellow, and brown resins which change 

 to an intense purple on addition of caustic potash. 



CORTEX CmWAMOMI. CINNAMON. 

 SAIGON CINNAMON. 



Cinnamomum Saigonicum (Saigon Cinnamon; Ger. 

 Saigonzimmt). — The bark of an undetermined species 

 of Cinnamomum (nat. ord. Laurinece), so called from 

 Saigon, in French Cochin China. 



Description. — In quills about 15 cm. long and 10 to 15 

 mm. in diameter, the bark is 2 or 3 mm. thick; outer 

 surface gray or light grayish-brown, with whitish patches, 

 more or less rough from numerous parts and some trans- 

 verse ridges and fine longitudinal wrinkles; the inner 

 surface cinnamon-brown or dark-brown, granular and 

 slightly striate; fracture short, granular, in the outer 

 layer cinnamon-colored, having near the cork numerous 

 whitish striae forming an almost uninterrupted line; 

 odor fragrant; taste sweet, warmly aromatic, somewhat 



