XX 



Index 



r Nature, 

 \_March 30, 1916 



Wright (W. H.), Classification of the Nebulae by means 

 of their Spectra, 556 ; Some probable Identities in Wave- 

 length in Nebular and Stellar Spectra, 556 ; Photographs 

 of the Spectra of Nebulae, 445 



Wyllie (Prof. J.) [obituary], 654 



Wyman (M.), bequest to Harvard Medical School, 666 



Wynne (Prof. W. P.), Atmospheric Pollution, 442 ; Smoke 

 Statistics for Sheffield, 274 



Yabe /H.), Three Papers in the Science Reports of the 



T6hoku Imperial University, 657 

 Yama'-e (J.), Inheritance of "Notched" Ears in Ayrshire 



Cattle, 151 

 Yanagihara (K.), A Theorem on Surface, 153 

 Yarnall (Anna), Bequest to Pennsylvania University, 330 



Yates (Lt.-Col. B.) [obituary], 711 



Yeaw (Prof. F, L.), Market Gardening, 284 



Yokota (S.), General Expression for Stress Components, 153 



Young (Sir Allen) [obituary], 376 



Young (Grace Chisholm), The Centenary of the Soci^t6 



Helv^tique des Sciences Naturelles, 4oi8 

 Young (R. K.), Spectroscopic Orbit of 12 Lacertae, 438 

 Yoxall (Sir J.j, Economy in Expenditure on Education, 150 



Zachariah (K.), appointed Professor of Political Economy 

 and Political Philosophy at Presidency College, Calcutta, 

 472 



Zeeman (P.), Fizeau's Experiments for Different Colours of 

 the Spectrum, 305 



Zeiller (Prof. C. R.) [obituary article], 402 



