12 QO. Annual Report. [February, 1922. 
Physical Science. 
Two papers on Chemistry have been published by the 
Society during the year. The first of these is on the prepara- 
i Dr. U. N. Brahmachari. 
When excess of solid urea is added to a very concentrated 
acqueous solution of hyper-acid-antimony] tartrate, and the 
mixture concentrated by heating on the water bath, and then 
alcohol added to the mixture, crops of prismatic crystals are 
obtained. This new compound is being used by Dr. Brahma- 
The second paper dealing with the recent advances in 
stereochemistry by Prof. B, K. Singh was originally an ad- 
dress delivered by the author at the Nagpur Session of the 
Indian Science Congress. The subject of optical activity has 
furnished several important discoveries, which have materially 
contributed towards the development of modern chemistry 
and this forms the subject matter of the author’s address 
which he discusses at some length 
Medical Section. 
During 1921, three meetings of the Medical Section were 
held. Dr. U_N. Brahmachari, M, at. A: D., F.A.S.B., read 
3 on “A new bracelet stethoscope for estimating systolic 
attacks of blackwater fever by intravenous injections of an anti- 
haemolytic quinine solution.” Dr, K. K. Chatterji read papers 
. : 
i 
by plication and overlapping of the externus obliquus abdo- 
minis,’ and ‘On the radical cure of hydrocele by plication and 
overlapping of the tunica vaginalis.” Major H. W. ons 
I.M.S., read a most interesting paper “ On the Parasite-ridden 
Population of the Tropics,” and aes a 
Major F. P. Mackie, F.R.CS., LMS. and De J. © Gupta, M.B. 
The Medical Section is now an important section of the Society's 
activities. af 
International Catalogue of Scientific Literature. 
The Committee of the Royal ‘Society in charge of the 
publication of the International Catalogue of Scientific Litera- 
ture have decided owi i i i 





