158 R. T. BAKER AND H. G. SMITH. 
excess; it was readily soluble in one volume 90% alcohol, 
but rapidly became less soluble on keeping. Saponification 
number was 47°03 equal to 16°46% of ester. In the cold 
with alcoholic potash, and with three hours contact, the 
sponification number was 24°5 equal to 8°57} of ester. This 
method of cold saponification has been found most satis- 
factory in the investigation of the oils of the several 
species of Callitris. 
On redistilling practically nothing came over below 156° 
C.; between 156 and 160° 30% distilled; between 160 and 
175° O. 45%; between 175 and 200° C. 87; between 200 and 
230° C. 12%. The specific gravity of the first fraction at 
22°C, = 0°8562; of the second 0°8571; of the third 0°8689; 
of the fourth 0°9415. The rotation @p of the first fraction 
= + 30°4°; of the second + 27°2°; of the third + 21°0°; of 
the fourth + 32°4°. The fourth fraction contained 68°2% 
of ester. Both borneol and acetic acid were isolated and 
determined, so that the high activity is largely due to the 
presence of dextrorotatory bornyl-acetate, and to dextro- 
rotatory borneolalso. All the samples of oil of this species 
which have been investigated, contained this dextrorota- 
tory ester. The refractive index at 21° C. of the first 
fraction = 1°4733; of the second 1°4736; of the third 1°4744; 
of the fourth 1°4723. 
Terpenes.—The first and second fractions were mixed 
together and redistilled. Between 156 and 160° OC. 42% 
distilled, and 29°* between 160 and 161° C. The specific 
gravity of both fractions at 20° C. = 0°8549; the rotation 
(yp of first fraction = + 30°8°, or a specific rotation [a], + 
36°02° and the refractive index at 20° C. = 1°4733. The 
nitrosochloride was easily prepared from this fraction, and 
when finally purified from chloroform by precipitating with 
methyl alcohol, it melted at 103 - 104° CO. The nitrosopinene 
was prepared from this, and when finally purified from 
