N. 0. SIMARUBEjE. 
293 
“The Boswellia serrata (Salai) gumresin enquiry is now approaching a 
definite conelnsion. During the year samples of the oil and rosin, products 
of steam distillation, were forwarded for valuation to the Imperial Institute, 
London. The report on these has been received and is to the effect that the 
oil closoly resembles American Turpentine Oil except as regards smell and is 
of excellent quality and will readily command a market, the rosin on the 
other hand is of poor quality, the defects being low saponification value and 
bad odour. Another experiment is now being carried out under the solvent 
process. The quality of the gum and resin produced by this process appears 
to be far superior to that produced by steam distillation and samples are 
therefore being forwarded to the Imperial Institute for a further report. 
As regards the prospects of an industry arising from the tapping of 
Boswel'.ut it cannot be said that these are at present very hopeful, the chief 
obstacles being the relatively small amount of resin exuded and consequently 
the high cost of the crude product. Reports from the local forest officers also 
indicate that tapping may permanently damage the trees so that investiga- 
tion on this point, viz., whether the trees are damaged by tapping, as well as 
the best of methods of tapping to obtain the maximum yield is to be under- 
taken daring the coming working season.” Annual Report of the Board of 
Scientific advice for India, 1914-15 pp. 128-129. 
253 . — Garuqa pinnata, Roxb. H. F. B. I., I. 528 : 
Roxb. 370. 
V ern - : — Kfirak (Bomb.); Kfisimba also k&kad (Concan) ; 
Garuga or garugoo (Tel.) ; Joom (B.) 
Habitat : — Throughout India. 
A large, deciduous tree. Bark lin. thick, soft red inside, 
grey or brown outside, exfoliating in large irregularly shaped 
scales. Wood variable: sapwood white, large; heartwood 
reddish brown, moderately hard, even-grained. Pores large, not 
numerous, often subdivided, sometimes filled with resin. Medul- 
lary rays short, moderately broad, on a radial section, visible 
as narrow horizontal plates, and giving a pretty silvergrain 
(Gamble). Young shoots and inflorescence grey pubescent. 
Leaves imparipinnate, crowded near the ends of the branches. 
Leaflets fi-9 pair, opposite or nearly so ; lanceolate, or ovate- 
lanceolate, crenate. Flowers yellow, or pale-yellow, in axillary 
panicles, several at the end of branches. Calyx campanulate, 
10-ribbed, 5-cleft, lined by a thin disk, with a crenate margin, 
on the edges of which the 5 petals and 10 stamens are 
