398 Meeting of February 6, 1902, and List of Papers read. 

 Sulphur Dioxide Gas. 



Ammonia Gas. 



February 6, 1902. 

 Sir WILLIAM HUGGINS, K.C.B., D.C.L., President, in the Chair. 



His Royal Highness the Prince of Wales (elected June 8, 1893), was 

 admitted into the Society. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



The following Papers were read : 



I. " The Stratifications of Hydrogen." By Sir WILLIAM CROOKES, 

 F.E.S. 



II. " Kadio-activity and the Electron Theory." By Sir WILLIAM 

 CROOKES, F.E.S. 



III. " The Density and Coefficient of Cubical Expansion of Ice." By 

 Dr. J. H. VINCENT. Communicated by Professor J. J. 

 THOMSON, F.RS. 



