— 15 — 
oil contains a divalent terpene hydrocarbon which is dextrorotatory, and 
a tetravalent Isevorotatory one. In the fraction of the oil passing over 
from 215° to 220°, Tardy detected terpineol. The fairly large 
residue, boiling above 225°, consisted mainly of sesquiterpenes, which 
had possibly been formed by condensation of the hydrocarbons, and 
which distilled over from 265^ to 275°. 
Cajeput Oil. According to Umney^) there have now for some 
years been cajeput oils on the market which do not answer the re- 
quirements of the British Pharmacopoeia. Whilst up to 1899 the 
specific gravity of cajeput oil was seldom found to be below 0,922, 
Umney recently determined this constant in several cases at 0,919. 
Whether the low specific gravities of recent imports are the result of 
using a different species of Melaleuca for the distillation, or whether 
the methods of distillation or rectification have been changed, is an 
open question. On the strength of his experiences, Umney proposes 
to adopt in the British Pharmacopoeia the limits of specific gravity 
of cajeput oil as 0,919 and 0,930. Umney detected as adulterants 
crude eucalyptus oil and petroleum which in one instance had even 
been artificially coloured with chlorophyl. 
Parry 2) agrees with Umney's above proposal; he considers an 
oil as genuine, if there are no other indications of sophistication, so 
long as the specific gravity does not fall below 0,919. A cajeput oil 
examined by Parry, which had the specific gravity 0,902, showed a 
marked phellandrene reaction, and had no doubt been adulterated with 
eucalyptus oil (from Eucalyptus amygdalina). 
Camphor oil. The new Japanese Act regulating the monopol- 
isation of the camphor and camphor oil production in Formosa and 
Japan, has now been published in the "Deutsches Handels - Archiv 
It reads as follows : — 
Crude camphor and camphor oil monopoly. 
(Japanese Gazette, 17 th June 1903). 
Par. I. The Government has the right of monopoly for crude camphor 
and camphor oil. 
Par. 2. Whoever produces camphor and camphor oil, must deliver the 
crude camphor and camphor oil to the Government. 
The time and place of delivery are fixed by the Government. 
Par. 3. The Government pays an indemnity for the crude camphor and 
camphor oil delivered. The amount of the indemnity is fixed by the Govern- 
ment, and must be published beforehand. 
Par. 4. In so far as it is not a question of crude camphor or camphor 
oil sold by the Government, no one is allowed to have these articles in his 
^) Chemist and Druggist 63 (1903), 725. 
^) Chemist and Druggist 63 (1903), 783. 
