!SXX CONTENTS. 



EVENING DISCOURSES. 



FRIDAY, SEPTEMBER 4. 



Page 



Halley's Comet. By Professor H. H. Ttjener, D.Sc, F.R.S 945 



MONDAY, SEPTEMBER 7. 

 The Colorado Canyon. By Professor W. M. Davis 948 



Index ^^1 



LIST OF PLATES. 



Plates I. to IV. 

 lUustrating the Report on Seismological Investigations. 



Plates V. and VI. 

 Illustrating the Report on the Fauna and Flora of the Trias of the British Isles. 



Plate VII. 

 Illustrating Professor Horace Lamb's Paper on the Theory of Wave-motion. 



