172 R. T. BAKER AND H. G. SMITH. 
C.;H..O requires H 11°71} and C 81°08". A sesquiterpene 
alcohol was thus indicated. 
The crystals were readily soluble in alcohol, even when 
somewhat dilute; also soluble in ether, in petroleum ether, 
in glacial acetic acid, in chloroform, in acetic ether and 
other organic solvents. The crystals were levorotatory, 
and 0°5 gram, when dissolved in 10 cc. alcohol, had a rota- 
tion in a1 dem. tube of —1°4’, the specific rotatory power 
from this is [a], —28°. When boiled with acetic anhydride 
in the usual way a liquid acetate was obtained. 
The crystals were heated with zinc chloride at 170 —180° 
C., water was added when cold, and the solution steam 
distilled. A blue oil was thus obtained; this was at first 
a little green, but it became bright blue on standing some 
time. The blue colour faded slowly if the air had full 
access, but if the oil was covered with water it remained 
blue and unchanged for several weeks. When mixed with 
phosphoric anhydride and gently heated, the colour changed 
to bright red and purple. An odour resembling somewhat 
that of the wood was eventually given off. 
We have obtained this crystallised alcohol from the wood 
of C. intratropica of Northern Australia, and also from the 
wood of the “‘Stringy Bark Pine,’’ C. Macleayana. The 
wood of this latter species has little resemblance to the 
hard compact wood of the Callitris generally, although 
the chemical products are the same; and it may thus be 
assumed that this crystalline substance, together with its 
corresponding sesquiterpene, is common to all the Callitris 
of Australia. In the timber of C. intratropica the alcohol 
was so pronounced that it crystallised on the surface of the 
planed wood itself when freshly cut. It is probably also 
to the presence of these and other chemical products in 
the wood of the Callitris that this timber is so objection- 
able to the ‘‘ White Ants,’ or Termites. 
