IV CONTENTS. 



1908. PAGE 



April 10. — Professor Joseph John Thomson — The Carriers 



of Positive Electricity ... ... ... ... 171 



May 1. — Annual Meeting 202 



„ 1. — Professor Joseph Larmor — The Scientific Work 



of Lord Kelvin 203 



4. — General Meeting 239 



8. — John Young Buchanan, Esq. — Ice and its 



Natural History... 243 



15. — Herbert Timbrell Bulstrode, Esq. — The Past 



and Future of Tuberculosis 277 



22. — Professor Dr. J. C. Kapteyn — Recent Re- 

 searches in the Structure of the Universe ... 300 



29. — Sir Ralph Payne-Gall wey, Bart. — Ancient and 

 Mediaeval Projectile Weapons other than Fire- 

 arms ... ... ... ... ... ... 316 



June 1.- — General Meeting ... ... ... ... ... 335 



„ 5. — Professor Sir James Dewar — The Nadir of 



Temperature, and Allied Problems ... ... 413 



July 6.— General Meeting 338 



Nov. 2.— General Meeting 342 



Dec. 7.— General Meeting 349 



„ 7. — Hodgldns Trust — Essay by Professor H. E. 

 Armstrong on Low Temperature Research at 



the Royal Institution, 1900-1907 354 



1909. 



1909. 



Jan. 22. — Alfred Russel Wallace, Esq. — The World of 



Life : as Visualised and Interpreted by Darwinism 423 

 „ 29. — Colonel Sir Frederic L. Nathan — Improve- 

 ments in Production and Application of Gun- 

 Cotton and Nitro- Glycerine ... ... ... 430 



