PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. lxxi. No. 472. 



CONTENTS. 



PA.GHS 



Some Dielectric Properties of Solid Glycerine. By Ernest Wilson, Pro- 

 fessor of Electrical Engineering, King's College, London. Communi- 

 cated by Sir William Preece, K.C.B., F.E.S 241 



The Relation between Solar Prominences and Terrestrial Magnetism. By 

 Sir If obm an Lockyer, K.C.B., F.R.S., and William J. S. Lockter, 

 M.A., Ph.D., F.R.A.S. (Plates 4, 5) 244 



The Bending of Electric Waves round a Conducting Obstacle. By H. M. 



Macdonald, F.R.S., Fellow of Clare College, Cambridge . . . 251 



Studies in the Morphology of Spore-producing Members. — No. V. General 

 Comparisons, and Conclusion. By F. O. Bower, Sc.D., F.R.S., Regius 

 Professor sof Botany in the University of Glasgow. (Abstract) . . 258 



On the Negative Variation in the Nerves of Warm-blooded Animals. By 



N. HJAlcock, M.D. Communicated by A. D. Wallee, M.D., F.R.S. . 264 



On the Decline of the Injury Current in Mammalian Nerve, and its Modifi- 

 cation 1 by Changes of Temperature. Preliminary Note. By S. C. M. 

 Sowton and J. S. Macdonald (from the Thomson -Yates Laboratory of 

 Physiology, University College, Liverpool). Communicated by Professor 

 C. S. Sherrington, F.R.S. 282 



On the Formation of Definite Figures by the Deposition of Dust. By W. J. 



Russell, Ph.D., F.R.S. (Abstract) . 285 



Mathematical Contributions to the Theory of Evolution. On Homotyposis in 

 Homologous but Differentiated Organs. By Karl Pearson, F.R.S., 

 University College, London 288 



Primitive Knot and Early Gastrulation Cavity co-existing with Independent 

 Primitive Streak in Ornithorhynchus. By Professor J. T. Wilson, 

 M.D., and J. P. Hill, D.Sc, University of Sydney. Communicated by 

 Professor G. B. Howes, LL.D., D.Sc, F.R.S ,314 



The Brain of the Archaeoceti. By G. Elliot Smith, M.A., M.D., Fellow of 

 St. John's College, Cambridge, Professor of Anatomy, Egyptian Govern- 

 ment School of Medicine, Cairo. Communicated by Professor G. B. 

 Howes, LL.D., D.Sc, F.R.S 322 



Minutes of Meetings of February 12 and February 19, 1903 



Price Two Shillings and Sin 

 March 14, 1903. 



MAR 30 1903 



