500 Indents 



Vacuum Tubes, Triode (Appleton), 239. 



Vaporisation, Latent Heats of (Rideal), 291. 



Velocity of X-ray Electrons (Whiddington), 442. 



Vena Cava of the Cat (Lanchester and Thacker), 228. 



Venational abnormalities in the Diptera (Lamb), 393. 



Vibrations, Theory of (Harrison), 83. 



Vines, H. W. C, Elected Fellow 1921, January 24, 487. 



Viscous liquid contained between two rotating coaxal circular cylinders. 

 Stability of the steady motion of (Harrison), 455. See also Transac- 

 tions, XXII. 



Viscous liquids. Viscosity of, Searle's method (Molin), 23. 



Viscous Motion, Equations of (Milne), 344. 



Vital staining (Potts), 231. 



Vyvyan, M. C, Elected Fellow 1920, February 23, 215. 



Wadham, S. M., Elected Fellow 1919, November 24, 213. 



Waran, H. p., On the effect of a magnetic field on the intensity of spectrum 



hnes, 45, 428. 

 Waters, Hydrogen ion concentration of some natural (Saunders), 350. 

 Waves, Standing, parallel to a plane beach (Pocbxington), 308. 

 Whiddington, R., The Shadow Electroscope, 109. 

 A Laboratory Valve method for determining the Specific Inductive 



Capacities of Liquids, 445. 



Note on the Velocity of X-ray Electrons, 442. 



White, A. H., Elected Associate 1921, March 7, 489. 

 White, F. P., Elected Fellow 1920, May 3, 216. 

 Wilson, B. M., Elected Fellow 1920, November 22, 486. 

 Wilson, C. T. R., Hopkins Prize award 1909-12, 217. 

 Wilson, J. T., Elected Fellow 1921, February 21, 488. 

 Wires, Bifilar method of measuring the rigidity of (Searle), 61. 



X-ray Electrons, Velocity of (Whiddington), 442. 



Zone plate. Focal Knes formed by (Searle), 330. 



PRINTED IN ENGLAND BY J. B. PEACE, M.A. 

 AT THE CAMBRIDGE UNIVERSITY PRESS 



