iv 



Page 



Influence of Acids and Alkalis upon the Electrotonic Currents of 

 Medullated Nerve. By Augustus D. Waller, M.D., F.R.S 80 



The Histology of the Cell Wall, with Special Reference to the Mode of 

 Connexion of Cells. Preliminary Communication. By Walter 

 Gardiner, M.A., F.R.S., Fellow and Bursar of Clare College, Cam- 

 bridge , m 100 



On the Viscosity of Hydrogen as affected by Moisture. By Lord 

 Rayleigh, F.R.S 112 



On the Variation of the Electromotive Force of different Forms of the 

 Clark Standard Cell with Temperature and with Strength of Solution. 

 By H. L. Callendar, M.A., F.R.S ., McDonald Professor of Physics, 

 and H. T. Barnes, M.A.Sc, Demonstrator of Physics, McGill 

 University, Montreal 117 



No. 381. 



Meeting of November 18, 1897, and President's Account of Presentation 

 of Address to the Queen 153 



List of Papers received and Published since the last meeting 154 



List of Papers read 155 



Account of a Comparison of Magnetic Instruments at Kew Observatory. 

 By C. Chree, Sc.D., F.R.S., Superintendent , 155 



Note on the Influence of very low Temperatures on the Germinative 

 Power of Seeds. By Horace T. Brown, F.R.S., and F. Escombe, 

 B.Sc, F.L.S 160 



On the Structure and Affinities of Fossil Plants from the Palaeozoic 

 Rocks. II. On Spencerites, a new Genus of Lycopodiaceous Cones 

 from the Coal-measures, founded on the Lepidodendron Spenceri of 



Williamson. By D. H. Scott, M.A., Ph.D., F.R.S., Hon. Keeper of 

 the Jodrell Laboratory, Royal Gardens, Kew 166 



Meeting of November 25, 1897, with List of Officers and Council and 

 List of Papers read 169 



On the Geometrical Treatment of the ' Normal Curve ' of Statistics, with 

 especial Reference to Correlation and to the Theory of Error. By W. 

 F. Sheppard, M.A., LL.M., formerly Fellow of Trinity College, 

 Cambridge. Communicated by Professor A. R. Forsyth, F.R.S 170 



Mathematical Contributions to the Theory of Evolution. IV. On the 

 • Probable Errors of Frequency Constants and on the Influence of 

 Random Selection on Variation and Correlation. By Karl Pearson, 

 M.A., F.R.S., and L. N. G. Filon, B.A., University College, London 173 



Further Observations upon the Comparative Physiology of the Supra- 

 renal Capsules. By Swale Vincent, M.B. (Lond.), British Medical 

 Association Scholar. Communicated by E. A. Schafer, F.R.S 176 



Further Note on the Transplantation and Growth of Mammalian Ova 

 within a Uterine Foster-mother. By Walter Heape, M.A., Trinity 

 College, Cambridge. Communicated by Dr. W. H. Gaskell, F.R.S. 178 



Antagonistic Muscles and Recipro; al Innervation. Fourth Note. By 

 C. S. Sherrington, M.A., M.D., t R.S., University College, Liverpool, 

 and E. H. Hering, M.D. (Prague ) 183 



