CONTENTS. 



— o-o^acjoo- — 



SERIES B. VOL. LXXIX. 



No. B 528.— February 22, 1907. 



PAGE 



On Opsonins in Relation to Red Blood-cells. By J. 0. Wakelin Barratt, M.D., 



D.Sc. Lond. Communicated by Dr. C. J. Martin, F.R.S , 1 



The Structure of Nerve-fibres. By J. S. Macdonald, the University of Sheffield. 



Communicated by Professor Sherrington, F.R.S 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 21 



On the Inheritance of Certain Invisible Characters in Peas. By R. H. Lock, M.A., 

 Fellow of Gonville and Caius College, Cambridge. Communicated by W. 

 Bateson, F.R.S 28 



On the Occurrence of Encystation in Trypanosoma grayl Novy, with Remarks on 

 the Method of Infection in Trypanosomes generally. By E. A. Minchin, M.A. 

 Communicated by Professor E. Ray Lankester, F.R.S 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. Communicated by Professor J. Joly, F.R.S 41 



Nitrification of Sewage. By George Reid, M.D., D.P.H. Communicated by 



Professor Gotch, F.R.S 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. Communicated 

 by Professor E. H. Starling, F.R.S 75 



No. B 529.— April 4, 1907. 



Address of the President, Lord Rayleigh, O.M., D.C.L., at the Anniversary Meeting 



on November 30, 1906 83 



Further Observations on the Effects produced on Rats by the Trypanosomata of 

 Gambia Fever and of Sleeping Sickness. By H. G. Plimmer, F.L.S. Com- 

 municated by Dr. C. J. Martin, F.R.S. (Plate 1) 95 



