34 
Indian Forest Records. 
[Vol. VI 
(iv) Report from Messrs. Turner Morrison and Company, Limited , 
Calcutta. 
inn T ^i fl f Sh P ° mt ° f the Boswellia turpentine .which has not been redistilled i& 
mi 5 F 1 Sh ° Uld P0int ° Ut that the colour of this oU would necessitate redis- 
tillation. As far as volatility goes, the sample is excellent and is better than 
any ot the Pinus longifolia samples which have been submitted to us. 
(v) Report from the Superintendent , Loco. Department , Eastern Bengal 
State Railway. 
The turpentine has been tried and is very similar to other classes of this oiL 
(vi) Report from the Gun and Shell Factory , Cossipore. 
Specific gravity at 100°F. . . 0-820 
Physical properties . . . Normal, transparent, 
light yellow colour, 
about 10 per cent, dis¬ 
tils before 310° and 
323°F. 
. Tt was te3ted practically by mixing it with paint, it dried in under 24 hours and' 
is therefore suitable for this purpose. 
2. Boswellia rosin. 
Boswellia rosin, though different in its chemical composition from 
Pine resin, is similar to the latter, in physical characteristics. For this 
reason, except for the purpose of soap-making, it could be used for 
. most othei industrial purposes to which the pine rosin is put, for example, 
as an ingredient in varnishes, and in the manufacture of shellac. 
Bulk samples of rosin were sent to the Imperial Institute London, 
Messrs. Angelo Brothers and the Shalimar Paint and Colour Works, 
Calcutta, for commercial valuation, and the reports received are as 
follows:— 
W Imperial Institute of the United Kingdom, the Colonies and India. 
Report on Boswellia rosin from India. 
The Boswellia rosin dealt with in this report was forwarded to the Imperial 
Institute by the Forest Economist at Dehra Dun with a letter No. 313-18, dated 
the 17th March 1916. The sample reached the Imperial Institute on the 27th Mav 
I qi a J 
Description of sample. 
The sample weighed 5*5 lbs. and consisted of four cakes, each measuring 9^ X" 
4| x 1 nches, of a golden brown, brittle, transparent rosin. The colour and appear¬ 
ance of the rosin was approximately that of grade “ G” colophony. 
c V i ThlS sara P le was prepared without redistillation as suggested by the Imperial Institute, 
owing tToxitottoJ .tad'^one°allS)Sre“ ole °- resin distllle<i in «•» *»« a very old one which. 
.[ 336 ] 
