PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 87. 



No. B 595. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



The Resonance of the Tissues as a Factor in the Transmission of the Pulse 



and in Blood Pressure. By LEONARD HILL, M.B., F.R.S., JAMES 



M. MCQUEEN. M.A., B.Sc. M.B., and WILLIAM W. INGRAM, M.B., Ch.B. 255 



On a Method of Studying Transpiration. By Sir FRANCIS DARWIN, F.R.S. 269 



The Effect of Light on the Transpiration of Leaves. By Sir FRANCIS 



DARWIN. F.R.S 281 



The Chemical Interpretation of some Mendelian Factors for Flower-Colour. 

 By M. WHELDALE, Fellow of Newnham College, Cambridge, and 

 H. LL. BASSETT, Trinity Hall, Cambridge 300 



On the Heat Production Associated with Muscular Work. By 



R. T. GLAZEBROOK, M. A., F.R.S . and D. W. DYE, B.Sc. . . .311 



On the Fossil Floras of the Wyre Forest, with Special Reference to the 

 Geology of the Coalfield and its Relationships to the Neighbouring 

 Coal Measure Areas. By E. A. NEWELL ARBER, M.A., Sc.D., F.G.S., 

 F.L.S., Trinity College, Cambridge. (Abstract) 317 



The Determination of the Minimal Lethal Dose of various Toxic Substances 

 and its Relationship to the Body Weight in Warm-Blooded Animals, 

 together with Considerations bearing on the Dosage of Drugs. By 

 GEORGES DREYER, M.D., Fellow of Lincoln College, Professor of 

 Pathology in the University of Oxford ; and E. W. AINLEY WALKER, 

 D.M., Fellow and Tutor of University College, Lecturer in Pathology in 

 the University of Oxford 3 l 9 



printed for THE ROYAL SOCIETY and sold by 



HARRISON & SONS, 45, ST. MARTIN'S LANE, LONDON, W.C. 

 Price Two Shillings and Sixpence. 



No. B 595. 



February 2, 1914. 



