44 
Indian Forest Records . 
[VOL. IY. 
Therefore, if A + B + C are increased by the addition of 1, 2, 3, 
4 and 5 from every charge, the sample will be nearly quite as good 
as A + B + C alone- 
Experiments at Bhowali Distillery. 
The results given above clearly show that if the crude turpen¬ 
tine oil is divided into four fractions as was done by Mr. P. H. 
Clutterbuck, then the first three fractions will prove to be fairly good 
samples of turpentine oil, and the fourth fraction D needs further 
treatment. . 
S3* 
Redistillatxon of D. 
Accordingly, D was redistilled in a small copper still of the 
same form as is in use for the distillation of crude turpentine on 
exactly the same lines on which crude turpentine is distilled. A 
heavy coloured, viscous residue was left behind, and out of 10 
bottles (i.e ,, about 15 lbs.),7J bottles ( i.e ., 11 lbs.) were recovered. 
This means that by redistilling it 75 per cent, is recovered and 25 
per cent, is left as a heavy residue. , 
The redistilled D on fractional distillation gave the following 
fractions: — 
155°—160° C. 
• 
. 
. 
' . 
. 27-5 per+ent. 
160°—165° C. 
. 
. 
• 
. 
. 51-5 * 
165°—172° G. 
• 
. 
. 
. 12*5 „ 
Residue 
• 
. 
. 
. 
ip 
do 
The fraction of residue from the redistilled D gave the follow¬ 
ing fractions, which have very high boiling points and seem to be 
complex resinous acids mixed with the decomposition products of 
colophony: — 
230°—240° C. 
240°—245° C. 
245°—250° C. 
A residue highly coloured semi-solid, viscous 
mass .... . 
23-5 per cent. 
46-0 
11-0 
99 
99 
19-5 
99 
It is evident now that this fraction being mixed with A, B, C 
not only raises their boiling points, but vitiates the quality of the 
oil as a whole, reduces its drying quality, and it is probable that 
C 44 ] 
