57 
Part L] Puran Singh: Turpentine Oil and Indian Rosin . 
(vide infra, this Note, page 21). An oil distilling about 
90—94 per cent, below 167° C. was prepared on a fairly large scale 
by the new process at Bliowali. On evaporation, when exposed in 
a thin layer on a glass plate, it left a clean dry surface. A quan¬ 
tity of this oil was again sent to the Chief Store-keeper, North- 
Western Railway, for trial. He reported on its quality as 
follows: — 
“ The sample referred to is only suitable for outside work 
and is not as good as the sample sent previously and 
which was reported on favourably.I 
regret to state that I cannot accept any turpentine 
according to last sample sent, as the whole of my 
supplies must be of uniform quality. I cannot keep 
aside particular qualities for particular kinds of 
work.” 
According to my tests, however, the two oils mentioned above, 
one reported as suitable and the other unsuitable, were practically 
equal in quality. The first oil, which was reported on favourably, 
distilled over about 95 per cent, below 167° C., while the second 
oil, which was reported on unfavourably, distilled over about 90— 
94 per cent, below 167° C. As for drying tests, even the residue 
of the latter above 107° C. left no greasy residue on evaporation, 
hence it must be taken in its practical application to be equal to 
the first oil. 
The opinion of the Chief Store-keeper on the two oils, there¬ 
fore, seemed contradictory. In order to acquaint myself with the 
actual requirements of the Railway Workshops, I secured an intro¬ 
duction to Mr. Keatinge, the Chief Store-keeper, North-Western 
Railway, from Rai Sahib Bishan Dass, Personal Assistant to the 
Manager, North-Western Railway. 
Mr. Keatinge was kind enough to make the following suggestion 
to settle the point :—“ I have been endeavouring for the past two 
years or more to introduce turpentine of country manufacture on 
the Railway, but have always met with the objection that it is 
defective in quality and unsuitable and, therefore, I have been 
compelled to obtain my requirements from England. I am afraid 
any further attempts carried on with correspondence will not result 
in any good. A few practical demonstrations witnessed by the 
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