PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 81. No. B 548. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



Reciprocal Innervation of Antagonistic Muscles. Fourteenth Note. — On 



Double Reciprocal Innervation. By C. S. SHERRINGTON, D.Sc, F.R.S. 249 



The Properties of Colloidal Systems. I. — The Osmotic Pressure of Congo- 

 red and of some other Dyes. By W. M. BAYLISS, F.R.S., Physiological 

 Laboratory, University College, London ...... 269 



Some Effects of Nitrogen-fixing Bacteria on the Growth of Non-Leguminous 

 Plants. By W. B. BOTTOMLEY, M.A., Professor of Botany in King's 

 College, London ........... 287 



The Intracranial Vascular System of Sphenodon. By ARTHUR DENDY 



F.R.S (Abstract) 290 



The Variations in the Pressure and Composition of the Blood in Cholera ; 

 and their Bearing on the Success of Hypertonic Saline Transfusion in its 

 Treatment. By LEONARD ROGERS, M.D., F.R.C.P., F.R.C.S., I. M.S., 

 Professor of Pathology,. Calcutta . . . . . . . .291 



The Effect of Heat upon the Electrical State of Living Tissues. By 



A. D. WALLER, M.D., F.R.S . 303 



The Incidence of Cancer in Mice of Known Age. By E. F. BASHFORD, 



M.D., and J. A. MURRAY, M.D., B.Sc, Imperial Cancer Research Fund 310 



The Electrical Reactions of certain Bacteria, and an Application in the 

 Detection of Tubercle Bacilli in Urine by means of an Electric Current. 

 By CHARLES RUSS, M.B 3*4 



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July 8, 19( 



No. B 548. 



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JUL 19 



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