ON THE PINES OF AUSTRALIA. 159 
acetic-ether it formed good crystals which melted at 132° C. 
The low boiling terpene in the leaf oil of this species is, 
therefore, dextrorotatory pinene. The second fraction 
also consisted largely of this pinene. The third fraction 
(175 — 200° C.) consisted largely of dextrorotatory limonene 
together with dipentene. The presence of these terpenes 
in the leaf oil of this species was completely proved in the 
oil obtained from the material from Boppy Mountain. 
Sylvestrene was not detected nor were either cineol or 
phellandrene present. 
Alcohols.—The fourth fraction (200 —230° C.) was taken 
for the determination of the alcohols and the acids of the 
esters. 1°091 gram of oil reg. 0°2128 gram potash, S.N.= 
195°05 equal to 68°26 ester. The remainder was saponified 
by boiling in aqueous potash, and the oily portion separated. 
This oil had a marked odour of borneol. Sufficient borneol 
was present to form a semi-solid portion floating in the oil, 
this was separated and purified from petroleum ether and 
absolute alcohol. It formed well defined crystals, with a 
marked odour of borneol and melted at 202-3° C. The 
appearance, odour and melting point, together with its 
association, show this alcohol to be borneol. 
Geraniol is also most probably present in combination 
with acetic acid. This is indicated by the fact that 83% of 
the esters was saponified in the cold in three hours. In 
the investigation of the oil of Hucalyptus Macarthuri by 
one of us* it was shown that geranyl-acetate was com- 
pletely saponified in the cold. We have used this method 
in the investigations of the oils of the Callitris, and have 
been able to follow the increase in the amount of geranyl- 
acetate in the oils of the several species, and the corres- 
ponding diminution of bornyl-acetate. The ester in one of 
the species of Callitris has been found to be almost entirely 
+ This Journal, 1900, p. 146. 
