xlvii 



Warren (E.) Variation in Portunus depiirator, 221. 

 Water, Bath spring, Amount of Argon and Helium in (Rayleigh), 56. 

 Waters, Mineral, examined for Helium (Ramsay and Travers), 442. 

 Willey (A.) His Discovery of the Ova of Nautilus, 437. 



The Oviposition of Nautilus macromphalus, 467. 



Williams (J. L.) and Farmer (J. B.) On Fertilisation, and the Segmentation of 



the Spore in Fucus, 188. 



Williamson (William Crawford) Obituary Notice of, xxvii. 

 Wilson (William E.) elected, 4; admitted, 5. 

 and Fitzgerald (Q-. F.) On the Effect of Pressure in the Surrounding Gas on 



the Temperature of the Crater of an Electric Arc. Correction of Results in 



former Paper, 377. 



Woodward (Horace Bolingbroke) elected, 4 ; admitted, 5. 

 Wynne (William Palmer) elected, 4 ; admitted, 5. 



Yule (G-. U.) On the Significance of Bravais' Formulae for Regression, &e., in the- 

 case of Skew Correlation, 477. 



Zeeman's discovery of Effect of Magnetic Field on Radiation Frequency (Lodge) 

 513. 



ERRATUM. 

 P. 313, line 23. For Philip P. Lenard, read Philipp Lenard. 



THE END. 



HAKRISOS AND SONS, PBINTEM IK OBDWAHY TO HEE MAJEST1', ST. MABTIS'S LA>E. 



