V • t2 



PROCEEDINGS OF 



THE ROYAL SOCIETY. 



VOL. XXXIV. 



No. 220. 



I. 



On the Formation of Eipplemark. By Aethur E. }J.uxt. M.A., F.Gr.S. 

 Note on General Duane's Soundless Zones. By Dr. John -Ttxdall, 



CONTENTS. 



April 20, 1882. W ' £q *\ 



PAGE 

 1 



II. 



F.E.S, 



April 27, 1882. 



I. On the Attitudes of Animals in Motion. By Eadweaed Muybeidge. of 



Palo Alto, California . . 20 



II. Preliminary Account of the Structure of the Cells of the Liver, and the 

 Changes which take place in them under Various Conditions. By J. 

 N. Langlet, M.A., Fellow of Trinity College.. Cambridge . . .20 



May 4, 1882. 



I. On the Specific Eesistance of Mercury. By Loed Eatleigh, F.E.S. , 

 Professor of Experimental Physics in the University of Cambridge, 

 and Mes. H. Sidgwick 27 



I. Sur l'lnversion Generale. Par T. S. Vanecek 29 



II. On the Organisation of the Fossil Plants of the Coal-measures. Part XII. 



By Professor W. C. Williamson, F.E.S. . . . . 31 



May 25, 1882. 



I. On certain Geometrical Theorems. No. 2. By W. H. L. Eessell, 



F.E.S 35 



May 11, 1882. 



V 



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