LIST OF ILLUSTRATIONS, 



Diagrams, illustrating Mr. Smith's Paper on the "Theory of 



Light ;" five plates tofacepage 96 



Section of the supposed Geological Formation of the Gold Fields 



of Victoria, Australia 130 



Plan of a new form of a Floating Light-ship 162 



Charts, showing the Influence of Atmospheric Changes upon 



Diagrams illustrative of Mr. Cayley's Paper on the A-faced Poly- 



acrons, &c 256 



Diagrams illustrating Mr. Baxendell's Paper on a "System of 

 Periodic Disturbances of Atmospheric Pressure in 



Europe and Northern Asia" 264 



Monthly Mean daUy amount of the Irregular Oscillations of the 



Barometer at Manchester and Dublin 272 



Illustrations of Mr. Nasmyth's Paper "On the Structure of the 



Luminous Envelope of the Sun" 410 



