NGAI CAMPHOR. 



395 



a strong odour of camphor, and in Burmah a crude camphor 1874. 

 is even extracted from it. Many years ago, a European named 

 O'Kiley purified some of this camphor, and attempted to bring 

 it into notice as an article of commerce. According to Mason, 1 

 he made more than 100 Ihs. of it, which he sent to Calcutta, 

 where it was reported to be as good as ordinary camphor. 



It is probable that the Blurrtea is not the sole source of Ngai 

 camphor ; for according to Mr. Ewer the character ~^ (Ngai\ 

 is applied to designate several plants, including both Labiatce 

 and Compositce. The camphor is used not only in medicine, 

 but also in the manufacture of the scented kinds of Chinese Scented Chi 

 ink. Mr. Ewer states that about 15,000 dollars' (3000) worth 

 is annually exported from Canton to Shanghai and Ningpo, 

 whence it finds its way to the ink factories of Wei-chau and 

 other places. [N. Repert.f. Pharm. xxiii. 321.] 



THE CHEMISTRY OF NGAI CAMPHOR was investigated at the 

 same time by Mr. Sydney Plowman. 



On making an ultimate analysis of three camphors the 

 following results were obtained : 



i Cam- 

 phor. 



Camphor 



Laurel camphor 



Experimental. 



(C 78-2 

 A H 



1 



o 



10-44 

 11-36 



Theoretical. 



78-94 

 10-52 

 10-54 



100-00 100-00 



Borneo Camphor 



Experimental. 



C 77-66 

 H 11-68 

 O 10-66 



Theoretical. 



77-92 

 11-69 

 10-39 



Ngai camphor . 



100-00 100-00 



Experimental. 



( C 77-56 

 ^H 11-6 

 (O 10-84 



100-00 



1 Burmah, its People and Natural Productions, 2nd. ed., I860, 483. 



