— 95 — 
word for Artemisia vulgaris^ information which has lately reached us 
states that the oil is the distillate from the "kiku", i. e. chrysanthemum 
(Chrysanthemum [Pyrethrum] indicum L. and Ch. sinense Sabin.). The 
first opinion is in so far very probably correct, as the distillates are 
fairly similar to those obtained from our indigenous mugwort, whilst they 
show much less resemblance to a kiku oil^) examined by us years ago. 
From the same source is derived a 
Kuro-moji Oil. This pale-yellow, almost colourless oil had the 
following constants: d^go = 0,8947; a^y = — 14° 29'; ester number 
= 29,87; soluble in 0,9 volume and more 80 ^/q alcohol. The oil 
contained cineol, which was identified by the iodol compound. The 
coriander -like odour of the oil renders it likely that it also contains 
linalool. On the whole, the composition of the oil appears to differ 
from those of oils examined previously 2). The decidedly finer aroma 
of the present oil already points to this; and this finer aroma will no 
doubt secure for the oil a lasting place in the perfumery industry. 
Under the name of 
May Oil we received a distillate originating from Porto Rico, of 
Calyptranthes paniculata Ruiz et Pav. belonging to the Myrtaceae. The 
oil, which resembles lemongrass oil, had the specific gravity (15°) 0,9509, 
and an optical rotation of — 1° 52'. It dissolves very readily in 
8o^/q alcohol, but in 70 ^/q alcohol the solubility is incomplete. The 
oil contained 62,5 ^/^ citral. 
The following distillates originate from Florida: 
Oil from Mentha citrata Ehrh., a plant which in Florida is 
popularly known as "bergamot mint". The oil, obtained in a yield of 
about 0,2 ^/q from young, not flowering, but fresh plants (without roots), 
had a pale-yellow colour and a pleasant odour reminding even more 
of lavender oil than of bergamot oil. d^go = 0,8826; ajy = — 5° 35'; 
ester number = 31,28 = 10,95^/0 linalyl acetate; soluble in 2 and 
more volumes 70 ^/q alcohol. 
From the same plant a distillate is obtained from the frozen 
leaves, in about the same yield, which differed in its properties from 
the above-mentioned oil. di^^o — 0,8895; a^y = — 1° 41'; ester 
number = 1 1 1,28 = 38,95 ^/o ester (calculated for linalyl acetate); 
soluble in 2 and more volumes 70 ^/q alcohol. 
In consequence of the higher ester-content, the odour of linalyl 
acetate was here even more pronounced than in the previous oil. We 
must leave it an open question, to what cause the very considerable 
differences in the constants of the two distillates must be attributed. 
^) Comp. Gildemeister and Hoffmann, "The Volatile Oils" p. 682. 
^) Comp. Gildemeister and Hoffmann, "The Volatile Oils" p. 404. 
