IV 



Page 



An Attempt to ascertain the Date of the Original Construction of 

 Stonehenge from its Orientation. By Sir Norman Loekyer, K.C.B., 

 F.R.S., and F. C. Penrose, F.R.S 137 



The pear-shaped Figure of Equilibrium of a Rotating Mass of Liquid. 

 By G. H. Darwin, F.R.S., Plumian Professor and Fellow of Trinity 

 College, Cambridge 147 



Sur la Stabilite del'Equilibre des Figures Pyriformes aft'ecteespar une 

 Masse Fluide en Rotation. By H. Poincar6, Foreign Member R.S. . 148 



No. 453. 



Meeting of November 21, 1901, and List of Papers published during 

 the Recess 149 



List of Papers read 150 



The New Biological Test for Blood in Relation to Zoological Classifica- 

 tion. By George H. F. Nuttall, M.A., M.D., Ph.D., University 

 Lecturer in Bacteriology and Preventive Medicine, Cambridge. 

 Communicated by Sir M.' Foster, K.C.B., Sec. R.S 150 



On the Inheritance of the Mental Characters in Man. By Karl 

 Pearson, F.R.S., University College, London 153 



On the Process of Hair Turning White. By E. Metchnikoff, For. 

 Mem. R.S 156 



The Anomalous Dispersion of Sodium Vapour. By R. W. Wood, Pro- 

 fessor of Phvsics in the Universitv of Wisconsin. Communicated by 

 C. V. Boys, F.R.S. (Plates 1-3) 157 



On Skin Currents. Part II. Observations on Cats. By Augustus D. 

 Waller, M.D., F.R.S 171 



Meeting of November 28, 1901, List of Officers and Council nominated 

 for election, and List of Papers read 189 



On the Properties of the Arterial and Venous Walls. By John A. 

 MacWilliam, M.D., Regius Professor of Physiology in the University 

 of Aberdeen. Communicated by Sir M. Foster, K.C.B., Sec. R.S. ..*.. 190 



Heredity, Differentiation, and other Conceptions of Biology : a Con- 

 sideration of Professor Karl Pearson's paper "On the Principle of 

 Homotyposis." By W. Bateaon, M.A., F.R.S 193 



Observations on the Physiology of the Cerebral Cortex of some of the 

 Higher Apes. (Preliminary Communication.) By A. S. F. Griin- 

 baum, M.A., M.D., Cantab., M.R.C.P., and C. S. Sherringtou, M.A., 

 M.D., F.R.S., Holt Professor of Physiology, Liverpool. (Plate 4) ... 206 



No. 454. 



Total Solar Eclipse of 1901, May 17-18. Preliminary Report of the 

 Observations made at Ayer Karoe, Sawah Loento, Sumatra. By H. 

 F. Newall, M.A 209 



