PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 77. No. B 515. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



On certain Physical and Chemical Properties of Solutions of Chloroform and 

 other Anaesthetics. — A Contribution to the Chemistry of Anaesthesia. 

 (Second Communication. ) By BENJAMIN MOORE, M.A., D.Sc, 

 Johnston Professor of Bio-chemistry, University of Liverpool, and 

 HERBERT E. ROAF, M.D. Toronto, Johnston Colonial Fellow, 

 University of Liverpool ... ..... 86 



On the Effects of Alkalies and Acids, and of Alkaline and Acid Salts, upon 

 Growth and Cell Division in the Fertilized Eggs of Echinus esculentus. — 

 A Study in Relationship to the Causation of Malignant Disease. By 

 BENJAMIN MOORE, M.A., D.Sc, Johnston Professor of Bio-chemistry, 

 University of Liverpool ; HERBERT E. ROAF, M.D. Toronto, Johnston 

 Colonial Fellow, University of Liverpool ; and EDWARD WHITLEY, 

 M.A. Oxon 1 02 



A Note on the Effect of Acid, Alkali, and certain Indicators in Arresting or 

 otherwise Influencing the Development of the Eggs of Pleuronectes 

 platessa and Echinus esculentus. By EDWARD WHITLEY, M.A. (Oxon.) 137 



The Mammalian Cerebral Cortex, with Special Reference to its Comparative 

 Histology. I. — Order Insectivora. — Preliminary Communication. By 

 GEORGE A. WATSON, M.B., CM. Edin 150 



On the Microsporangia of the Pteridosperms. By ROBERT KIDSTON, 



F.R.S. L. and E., F.G.S. (Abstract) 161 



Some Observations on Welwitschia mirabilis, Hooker, f. By H. H. W. 

 PEARSON, M.A., F.L.S., "Harry Bolus" Professor of Botany in the 

 South African College, Cape Town. (Abstract) 162 



The Araucarieae, Recent and Extinct. By A. C. SEWARD, F.R.S., Fellow 

 of Emmanuel College, and SIBILLE O. FORD, formerly Bathurst Sludent 

 of Newnham College, Cambridge. (Abstract) . . . . .163 



PRINTED FOR THE ROYAL SOCIETY AND SOLD BY 

 HARRISON & SONS, 45, ST. MARTIN'S LANE, LONDON, W.C 



Price Two Shillings and Sixpence's- 



No. B515. 



January 6, 1906. 



