﻿PROCEEDINGS 
  

  

  OF 
  

  

  THE 
  ROYAL 
  SOCIETY 
  

  

  Series 
  B. 
  Vol. 
  91. 
  No. 
  B 
  637. 
  

  

  BIOLOGICAL 
  SCIENCES. 
  

  

  CONTENTS. 
  

  

  CROON 
  IAN 
  LECTURE.— 
  The 
  Biological 
  Significance 
  of 
  Anaphylaxis 
  

   By 
  H. 
  H. 
  DALE, 
  C.B.E., 
  M.D., 
  F.R.S. 
  . 
  

  

  The 
  Relation 
  of 
  Spermatozoa 
  Ito 
  certain 
  Electrolytes. 
  — 
  II. 
  By 
  J. 
  GRAY 
  

   M.A., 
  Fellow 
  of 
  King's 
  College, 
  Cambridge 
  . 
  

  

  Page 
  

   126 
  

  

  •47 
  

  

  A 
  Further 
  Study 
  of 
  Chromosome 
  Dimensions. 
  By 
  C. 
  F. 
  U. 
  MEEK. 
  

  

  (Plates 
  2 
  and 
  3) 
  . 
  «57 
  

  

  The 
  Physiological 
  Cost 
  of 
  Muscular 
  Work 
  Measured 
  by 
  the 
  Discharge 
  of 
  

   Carbon 
  Dioxide. 
  Part 
  I. 
  — 
  The 
  Energy 
  Output 
  of 
  Dock 
  Labourers 
  

   during 
  " 
  Heavy 
  Work." 
  By 
  A. 
  D. 
  WALLER. 
  M.D.. 
  F.R.S. 
  . 
  . 
  ,166 
  

  

  Obituary 
  Notices 
  of 
  Fellows 
  deceased 
  : 
  — 
  James 
  William 
  Helenus 
  Trail 
  vii 
  — 
  xi 
  

  

  PRINTED 
  AND 
  PUBLISHED 
  FOR 
  THE 
  ROYAL 
  SOCIETY 
  BY 
  

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

  

  Price 
  Four 
  Shillings 
  and 
  Sixpence. 
  

  

  No. 
  B 
  637. 
  

  

  March 
  1, 
  1920. 
  

  

  