PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 90, 



No. B 632. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



Observations on Changes in the Blood Pressure and Blood Volume following 

 Operations in Man. (Preliminary Communication.) By Captain 

 H. C. BAZETT, M.C., R.A.M.C 415 



On the Cooling and Evaporative Powers of the Atmosphere, as Deter- 

 mined by the Kata-thermometer. By LEONARD HILL, F.R.S., and 

 D. HARGOOD-ASH 438 



The Influence of External Concentration on . the Position of the Equilibrium 

 attained in the Intake of Salts by Plant Cells. By WALTER STILES, 

 M.A., Lecturer m Botany in the University of Leeds, and FRANKLIN 

 KIDD, M.A., D.Sc, Fellow of St. John's College, Cambridge . . . 448 



PRINTED AND PUBLISHED FOR THE ROYAL SOCIETY BY 

 HARRISON & SONS. 44-47, ST. MARTIN'S LANE. LONDON. W.C.2. 



» 



Price Three Shillings and Sixpence. 



No. B 632. 



April 1 , 1919. 



