; -_ excelsa have not given any satisfactory results. The a was” 
stills are antiquated and out of use since 1914. ne ole ae, 
was built-in Nurpur which worked for 5. or 6 years, consuming - 150 to. 
sulphate, but ‘nowadays it is ouly allowed to stand. in | huge 
ay “REPORT OF ia 
e 
distilling P an 
ee 
ago, ne api being 50 foan in “1915/16. Teer 2 $ od 
In the Punjab, resin is obtained from the Rawalpindi roreuie, 
. however, in the north-east part of the province, are not- exploited an 
longifolia supplies the resin in the Punjab too, whereas the. ex] 
the woods are too much out of the way. — : aig 
‘The exploitation of the Kangra woods was. bebis in 1897/98 “and j 
resin annually and producing 110 to 150 tons of estes in addition to. » 7000 to 
of turpentine oil. mts. aes 
Tapping in the Rawalpindi forests stared: in 1909/10. In te joe 
distilling plant was erected in Shahdara, on the Ravi ‘river, 4 miles nor ) 
where it was possible io distil 367 tons yearly. In 1914, this ee was bee: ears 
ote 
of rosin and 31445 gallons | of turpentine oil. \ 
Although there are considerable pine woods in Assam a Burmab, oi has 
not been tried there so far. : r 
In India, the trees are tapped apooudene to the French tnettods One starts z 
March and renews the wound about 5 times a mouth during the whole “sur 
The trees are tapped for 5 consecutive years and then left in peace for 10 years, 
that always only one third of the trees are under exploitation. Generally eaking, ~ 
the trees in Kumaun are only slightly tapped; trees of 3 feet 6 inches to. 4 feet. 
6 inches in circumference are bored but once, those of 4 feet 6 inches to 6 fee | 
twice, and those over 6 feet, three times. Trees destined to be cut down within 5 yea 
are tapped to exhaustion, the number of boring holes being increased sometimes u 
eleven. 2000 trees, tapped to exhaustion, yielded 450 cwts. of turpentine, i in 1913, 
The same method is worked upon in the Punjab, but it has been found” ade 
that it is advantageous to scrape the wound, which” is to now every ae or 428 
steam. The turpentine oil distilling over with the steam is conden ne 
still, inserted’ between the proper still and the condenser, in order to ‘free at fro 
particles of turpentine and rosin that may. have been carried over. cine the 
distillate, the oil of turpentine and the water are ee mechanically. BN 
bids that it may contain. 
As 
Eset y it was reed from. water “b q 2 ans 
golwayiGasipe Report October 1916, 56. 
‘ 
