510 



Waterhouse (J.) Tlie Sensitiveness of Silver and of some other Metals to Light, 

 490. 



Watts (Philip) elected, 449. 



Wave-fronts, Reflected, Kinematographic Demonstration of (Wood), 283. 

 Whetham (W. C. D.) The Ionization of Dilute Solutions at the Freezing Point, 

 192. 



Wilson (C. T. E.) elected, 449. 



Wood (R. W.) Photography of Sound-waves, and the Xinematographic Demon- 

 stration of the Evolutions of Reflected Wave-fronts, 283. 



Yule (Gr. U.) On the Association of Attributes in Statistic?, with Examples from 

 the Material of the Childhood Society, &c., 22. 



Zeleny (John) The Velocity of the Ions produced in G-ases by Rontgen Rays, 

 238. 



END OF THE SIXTY-SIXTH VOLUME. 



Haerison avj) Sons, Printers in Ordinary to Her Majesty, St. Martin's LM,nc,- 



