Part I.] Pttran Singh : Turpentine Oil and Indian Rosin. 43 
It will be seen that the first five bottles go on diminishing in their 
first fractions passing below 165° C. from 35*0 to 11*0 per cent., 44 
to 63 passes below 172° C., the residue is 11—21 per cent. Hence a 
fraction made by mixing No. 1 to No. 5 will be better than 
D. Accordingly a mixture in equal proportion of No. 1 to No. 5 
was made and fractionated with the following results : — 
Fractions 
of 2+2+3+^+J mixed in equal proportions. 
Up to 172° C. 
172°—180° C. 
180°—200° C. 
Residue 
45 per cent. 
25 
15 
15 
99 
99 
This mixture was added to A + B + C in equal proportions and 
fractionated with the following results 
160°—165° C. 
165°—172° C. 
172°—180° C. 
180°—200° C. 
Residue 
42*5 per cent. 
200 „ 
17-5 „ 
9-0 „ 
110 „ 
It will be seen from the above figures that the first five bottles of 
D are good and if mixed with A + B + C they do not vitiate the 
quality of the resultant oil to any great extent. A + B + C has 82*5 
per cent, passing below 180° C., while A+B+C+ (1+ 2 + 3 + 4 +5) 
has 78*5 per cent. This when compared with the oil, which is at 
present being sent to market, stands thus : — 
TABLE VII. 
Sample. 
Passing below 172° C. 
Passing below 180° C. 
A 4 (the oil at present sent to market) 
60-0% 
77-5o/ 0 
A+B+C . 
75-0% 
82-5% 
A+B+C+(l +2+3+4+5) . 
A 
62-5% 
80-0% 
[ 43 ] 
