■N. 



PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 

 Series B. Vol. 79. No. B 528 



BIOLOGICAL SCIENCES. 



CONTENTS. 



* 0«c Ufetfl 



Page 



On Opsonins in Relation to Red Blood-cells. By J. O. WAKELIN BARRATT, 



M.D., D.Sc. Lond. I 



The Structure of Nerve-fibres. By J. S. MAC DONALD, the University of 



Sheffield . 12 



The Influence of Increased Barometric Pressure on Man. — II. By 

 LEONARD HILL, F.R.S., and M. GREENWOOD, Jr., M.R.C.S., British 

 Medical Association Research Scholar . . ..... 2 ' 



On the Inheritance of Certain Invisible Characters in Peas. By R. H. LOCK, 



M.A., Fellow of Gonville and Caius College, Cambridge 2 & 



On the Occurrence of Encystation in Trypanosoma grayi Novy, with 

 Remarks on the Method of Infection in Trypanosomes generally. By 

 E. A. MINCHIN, M.A 35 



On the Transpiration Current in Plants. By HENRY H. DIXON, Sc.D., 

 Professor of Botany in Dublin University, and Director of Trinity College 

 Botanic Gardens . . . . . . . . . . . 4 1 



Nitrification of Sewage. By GEORGE REID, M.D., D.P.H. ...58 



The Relation of the Kidneys to Metabolism. — Preliminary Communication. 



By F. A. BAINBRIDGE, M.A., M.D., and A. P. BEDDARD, M.A., M.D. 75 



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 528. 



February 22, 1907. 



