2 
Indian Forest Records. 
[Vol. VIII 
Abies Pindrow, Spach. occurs over a fairly wide area. According 
to Gamble, it is the principal western silver fir of the Himalayas and is 
found in the outer Himalaya from Chitral to Nepal from 7,000-9,000 
feet rising occasionally to 10,000 feet. In the eastern Himalaya it is 
replaced by Abies Webbiana which rises to higher altitudes. 
The results of the investigation of the oil from Abies Pindrow 9 Spach. 
have shown that it consists of over 70 per cent, of < -and p-pinene, 
whilst from the higher boiling fractions Mimonene, Z-terpineol, /-terpinyl 
nonylate and two isomeric sesquiterpene alcohols have been isolated. 
Borneol and bornyl acetate were absent. 
In view of these results the oil would appear to possess little commer¬ 
cial value, since it would be too expensive and could not be produced 
in sufficient quantity to serve as a source of turpentine. 
Experimental. 
The oil used in this investigation had been obtained by the distillation 
in steam in the usual manner of the leaves of Abies Pindrow, Spach. 
in a yield of 2-5 per cent. It was an almost colourless oil with a strong 
smell of turpentine and had the following constants Df^o 0*8558, 
N 3 p°° 1*4667, [«<] 3 ° 0 —-10*38°, saponification value 5*3, saponification 
value after acetylation 15-44, acid value 0*3. 
A quantity of the oil was distilled under diminished pressure (100mm.) 
when the following fractions were obtained :— 
Per cent. 
A. 95-100° 
.62'4 
B. 100-120° . 
C. Above 120° 
.10 
Fractions A and B 
were systematically redistilled at the ordinary 
pressure (699mm.) using a fractionating column when ultimately the 
following fractions were 
separated. 
Per cent. 
I. 154-158° . 
.55*9 
II. 158-160° . 
.11*9 
III. 160-164° . 
.6-8 
IV. 164-167° . 
. . . 4-2 
V. 167-180° 
.10-3 
VI. Above 180° 
10-6 (combined with frac- 
tion 0 from original distil¬ 
lation.) 
[ 669 ] 
