The Biochemical Society, England 109 



and the temperature of the water- jacket are recorded. A glass or 

 celluloid millimeter scale is afterwards placed against the pressure- 

 tube so that its zero coincides with the level of the mercury; the 

 stopcock is then opened and the rise of the mercury in the pressure- 

 tube noted, and as the two tubes are of equal diameter, this number 

 multipHed by two gives the reduced pressure under which the gas 

 was measured. The height of the barometer is also taken and the 

 weight of nitrogen may be calculated in the usual way, or preferably 

 by the aid of the tables, etc., given in Sutton's Volumetrie analysis. 



Poli oil: a new adulterant of Ghee. /. H. Barnes, B.Sc, 

 F.I.C. and Arjan Singh. The authors deal with the edible seed of 

 Carthamiis oxyacantha N. O. Compositce, one of the Safflowers, 

 which is found as a persistent thorny weed, growing with and along- 

 side the wheat crop in India, from Umballa in the South to Pesha- 

 war in the North, and is difficult to eradicate. 



The seeds produce Poli oil, which they describe as an adulterant 



of Ghee (the clarified butter-fat of India). The authors give the 



Chemical and physical constants which they have determined for a 



genuine sample of the fresh oil, and State that the analyst will have 



little difficulty in recognising the adulterant when found in conjunc- 



tion with Ghee. 



46, Stamford Brook Road, W., London. 



II. THE BIOCHEMICAL SOCIETY, ENGLAND 



R. H. A. Flimmer, Secretary 



February 14. Inst, of Physiol., Univ. College, London, W.C. 

 (5.30 P.M.)^ 



W. M. Bayliss: Effect of temperature on Inhibition of enzyme 

 action. 



R. H. A. Plimmer: Analysis of proteins. I. Estimation of 

 arginine by decomposition with alkali. 



W. W. Reeve: Note on the preparation of cholesterol. 



At the meeting on Dec. 13 the following nominees for member- 

 ship were elected : F. Camp, Bernard F. Davis, Ingvar Jorgensen, 



1 The last two preceding meetings were held on Nov. 8 and Dec. 13. See 

 Biochemical Bulletin, 1916, v, p. 26. 



