INDEX. 



731 



Urea, effect of temperature on secretion 

 of, 440. 



Varley (C. F.) on the relative speed of 

 the electric wave through submarine 

 cables of different lengths, and a unit 

 of speed for comparing electric cables 

 by bisecting the electric wave, 211. 



Vogt (C.) on the influence of tempera- 

 ture on the electric conducting-power 

 of thallium, and iron, 472. 



Walker (J.), obituary notice of, Ixiv. 



Waller (A.) on the sensory, inotory, 

 and vaso-motory symptoms resulting 

 from refrigeration and compression of 

 the ulnar and other nerves in man, 89. 



Wanklyii (J. A.) on the distillation 



of mixtures : a contribution to the 

 theory of fractional distillation, 534. 



Wanklyn and Eobinson (J.) on diffu- 

 sion of vapours, a means of distin- 

 guishing between apparent and real 

 vapour-densities of chemical com- 

 pounds, 507. 



Waves, exact form and motion of, near 

 the surface of deep water, 275. 



Weber (E. H.) elected foreign member, 

 133. 



Williamson (A. W.), Eoyal Medal 

 awarded to, 297. 



Woollcombe (R. W.), account of some 

 experiments with excentric oblate 

 bodies and discs as projectiles, 17. 



Wroxeter, on the distorted skulls found 

 at, 149. 



END OF THE TWELFTH VOLUME. 



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