vi 



PAQK 



No. B 633— May 15, 1919. 



On the Four Visible Ingredients in Banded Bituminous Coal : Studies in the 

 Composition of Coal, No. 1. By Marie C. Stopes, D.Sn., Ph.D., Fellow and 

 Lecturer in Palseobotany, University College, London. Communicated by 

 Sir George Beilby, F.E.S. (Plates 11 and 12) 470 



The Comparative Bate of Absorption of Various Salts by Plant Tissue. By 

 Walter Stiles, M.A., Lecturer in Botany in the University of Leeds, and 

 Franklin Kidd, M.A., D.Sc, Fellow of St. John's College, Cambridge. Com- 

 municated by Prof. W. M. Bayliss, F.E.S 487 



Changes in the Teeth of the Guinea-pig, produced by a Scorbutic Diet. By 

 S. S. Zilva, Ph.D., M.Sc, and F. M. Wells, Major, C.A.D.C. Communicated 

 by Dr. A. Harden, F.E.S. (Plate 13) 505 



On a New Factor in the Mechanism of Bacterial Infection. By W. E. Bullock 



and W. Cramer. Communicated by Prof. W. Bulloch, F.E.S 513 



No. B 634.— July 1, 1919. 



The Distribution of the Serological Types of B. tetani in Wounds of Men who 

 received Prophylactic Inoculation, and a Study of the Mechanism of Infection 

 in, and Immunity from, Tetanus. By Major W. J. Tulloch, M.D., E.A.M.C., 

 Lecturer in Bacteriology, University of St. Andrews, Member of the War 

 Office Committee for the Study of Tetanus. Communicated by Major-General 

 Sir David Bruce, F.E.S 529 



The Existence of Daily Growth-rings in the Cell Wall of Cotton Hairs. By W. 

 Lawrence Balls, M.A., Sc.D. (Cantab.), late Fellow of St. John's College, 

 Cambridge. Communicated by F. F. Blackman, F.E.S. (Plates 14, 15 and 16) 542 



Croonian Lecture. — The Biological Significance of Anaphylaxis. By Dr. H. 



H. Dale, F.E.S. (Abstract.) 556 



OBITUAEY NOTICES OF FELLOWS DECEASED. 



Sir William Henry Power i 



Clement Eeid (with portrait) viii 



Daniel Oliver (with portrait) xi 



Captain Geoffrey Watkins Smith xvi 



Hermann Graf zu Solms-Laubach (with portrait) xix 



Eobert Bell xxvi 



Edward Hull (with portrait) xxviii 



Keith Lucas (with portrait) xxxi 



Henry George Plimmer (with portrait) xliii 



Alfred Merle Norman (with portrait) xlvi 



Index 



li 



