CONTENTS OF VOL. XXXVIII. SIXTH SERIES. Vll 



Page 

 Proceedings of the Geological Society : — 



Mr. C. J. Gilbert on the Occurrence of Extensive De- 

 posits of High-Level Sands and Gravels resting upon 

 the Chalk of Little Heath, near Berkhamsted 662 



Mr. G, Barrow on the Correlation of the Deposits 

 described in Mr. C. Gilbert's paper with the High- 

 Level Gravels of the South of England (or the London 

 Basin) 664 



Dr. A. Logie Du Toit on the Geology of the Marble 

 Delta (Natal) 665 



Lieut. E. HallPascoeon the Early History of the Indus, 

 Brahmaputra, and Ganges 667 



Mr. W. Whitaker on the Section at Worms Heath 

 (Surrey), with Remarks on Tertiary Pebble-Beds 

 and on Clay-with-Flints 668 



NUMBER CCXXVIIL— DECEMBER. 



Prof. E. A. Lindemann on the Theory of Magnetic Storms . . 669 



Prof. Horace Lamb on the Kinematics of the Eye 685 



Mr. S. C. Bradford on the Molecular Theory of Solution 696 



Prof. W. M. Thornton on the Thermal Conductivity of Solid 



Insulators 705 



Dr. E. W. Aston on a Positive Ray Spectrograph. (Plate IX.) 707 

 Miss Dorothy Wriuch and Dr. Harold Jeffreys on Some 



Aspects of the Theory of Probability 715 



Prof. H. C. Plummer on the Eorm of the Trailing Aerial . . 732 

 Sir Oliver Lodge on the Connexion between Light and 



Gravitation 737 



The late Lord Rayleigh on Periodic Precipitates 738 



Proceedings of the Geological Society : — 



Major R. W. Brock on the Geology of Palestine 741 



Mr. C. I. Gardiner on the Silurian Rocks of May Hill. . 742 

 Dr. A. Gilligan on the Petrography of the Millstone Grit 



Series of Yorkshire 743 



Mr. Frank Debenham on a New Theory of Transportation 

 by Ice : the Raised Marine Muds of South Victoria Land 



(Antarctica) 746 



Mr. A. E. Kitson on the Geology of Southern Nigeria 

 (British West Africa) with especial reference to the 



Tertiary Deposits 746 



Messrs. J. Burchmore Harrison and C. B. W. Anderson 

 on the Extraneous Minerals in the Coral-Limestones 



of Barbnclos 747 



Intelligence and Miscellaneous Articles : — 



On a New Eorm of Catenary, by J. Hollingworth .... 748 



Index 749 



