XV, 4 
Oshima: Formosan Termites 
361 
that the crude oil contains 7 per cent phenols and 10.5 per cent 
of acids. The result of a fractional distillation of the acids is 
given in Table XX. 
Table XX . — Fractional distillation of the acids. 
Distilling point ; Yield, 
pressure, S mm. Per cen t. 
°C. 
115 to 155 38 
155 to 175 30 
Residue 30 
These acids seem to belong to the fatty acids. But at present 
nothing can be said about their chemical properties. 
Baker and Smith 8 made an investigation of the phenol, and 
the name callitrol has been proposed for it. As these authors 
did not give the data in detail, it is hard to identify this phenol. 
However, the color reaction briefly stated by them is indicated 
in the phenol obtained by the above-mentioned method. It is 
reasonable, therefore, to treat the present phenol as callitrol. 
The result of a fractional distillation of the phenol is given in 
Table XXI. 
Table XXI . — Fractional distillation of the phenol. 
Distilling point ; Yield, 
pressure, 4 mm. p er c ent. 
°C. 
125 to 135 15 
135 to 155 7 
155 to 165 48 
Residue 30 
According to the statement by Mr. Kafuku, the presence of 
eugenol in the first fraction is undeniable. He states also that 
the empirical composition of the third fraction approximates 
C„HA 
As shown, the volatile constituent of cypress pine is mainly 
guajol, a sesquiterpene alcohol, which is said to be highly 
antiseptic. In order to prove the effect of this oil practically, 
the crude oil separated from resinous substances was dissolved 
in alcohol and injected into Japanese pine, which is most liable 
to the attack of termites. After entirely evaporating the alcohol, 
the treated blocks were buried in ground infested by Coptotermes 
formosanus. Although the controls, that is, untreated wood spec- 
imens, were seriously attacked within only one week, the treated 
ones were not attacked during one year (Plate XI, fig. 2, a, b ) . 
8 Baker, Richard T., and Smith, Henry G., A research on the pines of 
Australia. Technological Museum, New South Wales (1910) 63. 
