﻿CONTENTS of N° 24fl .—Fourth Series. 



XII. Remarks on Affinity. By M. Dumas page 81 



XIII. On the Heating of a Disk by rapid rotation in vacuo. By 

 Messrs, B. Stewart and P. G. Tait 97 



XIV. Fundamental Principles of Molecular Physics. By Professor 



W. A. Norton 98 



XV. On the Temperature of Flames, and its relations with the 

 Pressure. By M. H. St.-Claire Deville Ill 



XVI. On Ethylate of Sodium and Ethylate of Potassium. — Part. I. 

 By J. Alfred Wanklyn, Professor of Chemistry in the London In- 

 stitution 117 



XVII. On the Relation of Hydrogen to Palladium. By Thomas 

 Graham, F.R.S., Master of the Mint 122 



XVIII. On some Phenomena of Binocular Vision. By Joseph 

 LeConte, Professor of Chemistry and Geology in the University of 

 South Carolina 131 



XIX. Notices respecting New Books : — Mr. J. N. Lockyer's 



' Elementary Lessons in Astronomy ' . . . , 141 



XX. Proceedings of Learned Societies : — 



Royal Society: — Lieut. J. Herschel on the Lightning Spec- 

 trum ; Mr. J. N. Lockyer on the Spectrum of a Solar Pro- 

 minence; and Spectroscopic Observations of the Sun . . 141-145 



Geological Society : — Dr. J. Schmidt on the Eruption of the 

 Kaimeniof Santorin; Mr. J.Prestwich on the Structure of the 

 Crag-beds of Norfolk and Suffolk ; Mr. J. Thomson on some 

 genera of Carboniferous Corals ; Mr. S. V. Wood, Jun., on 

 the Pebble-beds of Middlesex, Essex, and Herts; Mr. W. 

 Topley on the Cretaceous Rocks of the Bas-Boulonnais ; 

 Mr. R. B. Foote on the Distribution of Stone Implements in 

 Southern India; Sir Philip de M. Grey Egerton on some 

 new fossil Fish from the Lias of Lyme Regis ; Mr. J. W. 

 Salter on a true Coal-plant from Sinai, and on some Fossils 

 from the Menevian Group ; Mr. W. B. Dawkins on a new 

 Species of Fossil Deer from Clacton and the Norwich Crag ; 

 Mr. E. R. Lankester on the remains of Pteraspidian Fishes 

 in Devonshire and Cornwall 145-156 



XXI. Intelligence and Miscellaneous Articles: — 



On the Temperature of Flames and Dissociation, by E. Vicaire. 156 

 On a Friction and Induction Electrical Machine, by E. Carre. . 160 

 On the Shape of the Flame of a Bunsen's Burner, by A. Poppe . 160 



%* It is requested that all Communications for this Work may be addressed, 

 post-paid, to the Care of Messrs. Taylor and Francis, Printing Office, Red 

 Lion Court, Fleet Street, London. 



