TKe Nature ai\d Objects 



of the 



\JRoYAL INSTITUTION 

 GR.EAT BRITAIN 



for the 



Promotion, Diffusion, a.nd 

 Extension of Science and of 

 Useful Knowledge V ^* 



ESTABLISHED UNDER A CHARTER, GRANTED BY HIS MAJESTY 

 KING GEORGE THE THIRD, IN THE YEAR 1800 . . 



ENLARGED AND CONFIRMED, BY AN ACT OF PARLIAMENT, IN 

 THE YEAR 1810 



Telegraphic Address Albema.rle Street 



" Royal Institution, London.' 

 Teleohone" Regent 669." 



1915 



LONDON 



ia.rle Street 

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