CONTENTS 



1902. 



1902. PAGE 



Jan. 17. — The Right Hon. Lord Eayleigh — Interference of 



Sound .. .. .. .. .. .. 1 



„ 24.— H. G. Wells, Esq.— The Discovery of the Future 8 



„ 31. — Professor A. Crubi Brown, M.D. — The Ions of 



Electrolysis .. .. .. .. „ 26 



Feb. 3. — General Monthly Meeting .. .. .. .. 43 



„ 7. — Professor E. Rat Lankester — The New Mammal 

 from Central Africa, and other Giraffe-like 

 Animals .. .. .. .. .. .. 48 



„ 14. — Major P. A. MacMahon, R.A. — Magic Squares 



and other Problems on a Chess-Board .. ., 50 



„ 21. — W. Duddell. Esq. — Musical and Talking Electric 



Arcs .. „ 64 



„ 28. — Professoe Henet A. Miers — Gold-Mining in 



Klondike 72 



March 3. — General Monthly Meeting .. .. .. .. 82 



„ 7. — Professor H. Beoquebel — Radio-Active Bodies 



{in French) .. .. .. ..86 



„ 14. — Peofessoe Silvanus P. Thompson — Magnetism in 



Transitu 219 



„ 21. — Gbheimrath Professoe Otto N. Witt — Recent 



Developments in Colouring Matters .. .. 95 



April 7.— General Monthly Meeting .. .. .. .. 108 



„ 11, — Professor Dewar — Problems of the Atmosphere 223 



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