510 



Wilson (C. T. E,.) On the Comparative Efficiency as Condensation Nuclei of 



Positively and Negatively charged Ions, 289. 

 Wilson (Harold A.) On the Electrical Conductivity of Elames containing Salt 



Yapours, 120. 

 Wilson (W. Gr.) See Lamb and Wilson. 

 Windle (B. C. A.) elected, 206 ; admitted, 252. 



Worthington (A. M.) and Cole (R. S.) Impact with a Liquid Surface, studied by 

 the aid of Instantaneous Photography. Paper II, 153. 



Yeast and Bacterium, Symbiosis in Fermentation of Cane Sugar (Ward and 

 Green), 65. 



END OT" THE SIXTY-EIETH VOLUME. 



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