— 32 — 
them. The oil obtained from the soft and hard resin by steam 
distillation represented a water- white, mobile liquid with a pleasant 
odour, having the boiling point 165 to 170°, and the specific gravity 
0,840 at 15° C. It could be dissolved in every proportion in absolute 
alcohol, ether, and chloroform. The yield from soft resin amounted 
to 6 per cent, from hard resin to 5 per cent. 
Conjointly with Niederstadt^) they had previously examined the 
essential oil of New Zealand kauri copal. When kept for a prolonged 
period in a cool place, long fine crystal needles had separated out from 
the oil, which upon recrystallisation from dilute alcohol, showed the 
melting point 168°. Elementary analysis led to the formula Cg H^g O2. 
Oil of Costus Root. This oil, which we have not had in stock 
for some time, can now again be supplied in any desired quantity. 
Our present product, which is purified by a special process, has the 
well-known tallow-like odour in a much less marked degree than the 
previous make, — a fact to which we would call attention. 
Oil of Cryptomeria japonica. C. Kimoto^) reports on the 
essential oil of Crypio?neria japonica, a tree (conifer) widely distri- 
buted in Japan. The wood owes its pleasant odour, reminding of 
peppermint, to an essential oil which the author obtained by steam 
distillation of chips of the wood. This oil contains a body C^oH^gO, 
a neutral liquid of the boiling point 264° and the specific gravity 0,935, 
which the author has called *'sugiol", after the Japanese name of the 
plant. Sugiol is almost insoluble in water, but dissolves readily in 
alcohol, ether, and chloroform; it has the property of slowly reducing 
an alkaline silver solution in the dark. A crystalline acetyl or hydrazone 
compound of the substance does not exist. 
Elemi Oil. In continuation of his elaborate „Untersuchungen 
iiber die Secrete" (Investigations concerning secretions), A. Tschirch, 
jointly with J. Koch'^), reports on the various kinds of elemi resin. 
From the varieties hitherto examined, viz., Manila resin (hard and 
soft), Yucatan and Cameroon resins, the essential oil was produced 
by steam distillation; the yield was greatest (20 to 25 per cent) from 
soft Manila elemi, less (15 to 20 per cent) from Cameroon elemi; 
the two other varieties contain 7 to 10 per cent oil. The Manila 
oil had a bright yellow colour, and a pleasant, pronounced dill- like 
odour; the specific gravity was 0,955. The bulk boiled at 170 to 175°; 
between 175 and 210^ a thick yellow oil passed over, from which, 
^) Thesis, Berne 1901. 
^) Bull. Coll. Agric. (Tokio) 4, 403; according to Chemiker-Zeitung Rep. 26 
{1902), 175. 
^) Archiv d. Pharm. 240 (1902), 293. 
