PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. XXVLLL No. 194. 



CONTENTS. 



March 6, 1879. 



PAGE 



I. Observations on the Physiology of the Nervous System of the Crayfish 

 {Astactis Fluviatilis). By James Ward, M.A., Fellow of Trinity 

 College, Cambridge . . . .379 



II. Preliminary Eeport upon the Comatalce of the " Challenger" Expedition. 



By P. Herbert Carpenter, M.A., Assistant Master at Eton College . 383 



III. On the Characters of the Pelvis in the Mammalia, and the Conclusions 

 respecting the Origin of Mammals "which may be based on them. By 

 Professor Huxley, Sec. Pv.S., Professor of Natural History in the 



Koyal School of Mines 395 



s 



^ * March 13, 1879. 



I. The Influence of Electricity on Colliding Water Drops. By Lord 

 Eatleigh, E.R.S 406 



II. On the Influence of Coal-dust in Colliery Explosions. No. 2. By W. 



GrALLOWAY 410 



III. The Contact Theory of Voltaic Action. No. III. ' By Professors W. 



E. Ayrton and John Perry 421 



For continuation of Contents see 4th page of the Wrapper. 



Price Three Shillings and Swpence. 



