CHEMICAL PREPARATIONS AND DRUGS. 107 
years, the stocks in Shanghai are but small, and as the supplies from the interior of 
China have also diminished, the prices of genuine musk will in all probability be 
maintained at their present level at the very least. Attention may be called to the 
fact that we always hold a large stock of first-class quality, exvesicated by ourselves. 
Neoviolone, Schimmel & Co. In harmony with the declining price of the raw 
material, we have been able to reduce the price of our ionone-preparation on several 
occasions. Our 100 p.c. neoviolone is an exquisite violet-perfume, which is appreciated 
by all consumers who attach special value to the greatest possible purity in the basic 
material of their violet-scents. We shall be very pleased to meet buyers of important 
quantities by granting them specially favourable terms. 
Novoviol, Schimmel 8 Co. This article is steadily acquiring greater popularity 
in the manufacture of violet-soaps. In regard to the price, the statement made under 
“Neoviolone” also applies here. 
Ngai-Camphor. There are two centres of production of Ngai-camphor'), namely 
the Island of Hainan and Southern China. From Hainan about 15000 Ibs. of Ngai- 
camphor is shipped to Canton every year, where it is purified, and from where about 
10000 Ibs. is exported yearly. In the South of China about 15000 to 18000 Ibs. of the 
camphor is produced yearly, and is consumed locally. 
It is possible that the production of the Chittagong District in Burma may become 
of importance, for in that locality the Bluwmea grows in profusion. It is said that at 
least two species are reputed to yield Ngai-camphor, but unfortunately these are not 
particularised. 
We reported in detail on the constitution of Ngai-camphor some time ago’). 
Peru Balsam. Generally speaking, prices have remained unchanged, but owing 
to the unsatisfactory demand the tendency of the market is weak. The article still 
continues to suffer from the unedifying practices on the prevalence of which we have 
so often commented in the past that it is unnecessary to repeat our statements here. 
Any merchant who, like ourselves, will on principle only deal in pure Peru balsam, 
can derive but little satisfaction from the trade, seeing that it is an open secret that 
by far the great majority of the commercial balsams which pass the Pharmacopceia- 
tests, are in reality artificial concoctions. 
K. Dieterich’), in a paper on artificial and genuine Peru balsam, dealt with the 
question to what extent the methods for differentiating and identifying genuine from 
artificial Peru balsam which are at present known, but are not incorporated in the 
5th Edition of the German Pharmacopceia, can be used in conjunction with each other, 
and which of them can be utilised for the detection of artificial balsam in the natural 
product. He also discussed whether the methods of testing laid down in that Pharma- 
copceia were specially adapted to the elucidation of this problem and what proposals 
Should be recommended for adoption in a new Edition of the Pharmacopceia. 
With the object of settling the last-mentioned question, all known methods, 
qualitative and yuantitative, were thoroughly tested, both with a series of genuine 
1) Journ. d’ Agriculture tropicale 18 (1913), 317. — %) Comp. Reyort April 1910, 148. — %) Berichte d. 
deutsch. pharm. Ges. 28 (1913), 622. 
