Oshima: Formosan Termites 
XV, 4 
369 
in the camphor green oil is less than 0.04. The presence of 
the following has been proved : 
Ai-Menthenone-3 (melting point, 224° C.). 
Cumic aldehyde semicarbazone (melting point, 210° C.). 
An unknown semicarbazone (melting point, 218° C.). 
Camphor and cineol. — As a result of the fractional distillation 
it is proved that camphor green oil still contains camphor (8.1 
per cent) . The presence of cineol and limonene is a well-known 
fact. 
Safrol. — In the fractions distilled at comparatively low tem- 
perature crystals of safrol are deposited. It is proved that the 
oil contains about 30 per cent of safrol. 
Terpene alcohol. — It is possible to find linarol, garaneol, citro- 
neol, terpineol, d-terpineol, and cumic alcohol. The presence of 
these compounds has not been actually proved, because an im- 
portant reagent, phenylisocyanate, was not at hand. 
Sesquiterpene and sesquiterpene alcohol. — It is proved by K. 
Kafuku that camphor green oil contains about 10 per cent of 
sesquiterpenes (cadinene, bisabolene, and sesquicamphene) and 
25 per cent of sesquiterpene alcohol. He took three fractions 
(115° to 120°, 120° to 130°, 130° to 140° C.) distilled under 
reduced pressure (5 millimeters) and redistilled them, adding 
metallic sodium. The refractive indices are given in Table XXV. 
Table XXV. — Refractive indices of the three fractions distilled under 
reduced pressure. 
Distilling point. 
°C. 
Refractive index 
at 18 °C. 
120 to 125 
125 to 130 
130 to 135 
135 to 140 
1.4980 
1.4998 
1.5032 
1.5050 
Elemental analyses of these fractions have been made by 
Kafuku, proving that some of the fractions consist entirely of 
sesquiterpene alcohol as shown in the following: 
0.1652 gram of the material gave 0.4920 C0 2 and 0.1655 ELO. 
C 
H 
Required for 
c 15 h 20 o. 
Per cent. 
81.08 
11.71 
Found. 
Per cent. 
81.23 
11.74 
This sesquiterpene alcohol is not a crystal like guajol or 
cedrol, but is a colorless, viscous fluid, sometimes giving a pale 
green color. 
