540 



INDEX. 



Spectra, on energy distribution in, 

 49; on the high-vacuum, of gases, 

 253. 



Spectrum, on the, of iron in flames, 1. 



Stresses, on Maxwell's, 256. 



Swann (Dr. W. F. G.) on equi par- 

 tition of energy and radiation 

 theory, 64. 



Temperature variation, on the normal 

 anomalies of the mean annual, 

 487. 



Tetramethyl ammonium iodide, on 

 the structure of, 395. 



Thermal diffusion, note on, 248. 



Thornton (Prof. W. M.) on the 

 limits of inflammability of gaseous 

 mixtures, 190 ; on the relation of 

 oxygen to the heat of combustion 

 of organic compounds, 196. 



Tinker (Dr. F.) on osmotic pressure, 

 428. 



Ultra-violet transparency of certain 

 coloured media, on the, 450. 



Unipolar induction, on, 179. 



Vapour pressure of zinc, cadmium, 

 and mercury, on the, 33. 



Vegard(Dr. L.) on results of crystal 

 analysis, 395. 



Visual diffusivity, on, 18. 



Waterman (A. T.) on the positive 

 ionization from certain hot salts, 

 225. 



Wave-motion, on discontinuous, 203, 

 352. 



Waves, on periodic irrotational, at 

 the surf ace o f deep water, 381. 



Whipple (F. J. W.) on the motion 

 of a particle on the surface of a 

 smooth rotating globe, 457. 



Wicksell (Dr. S. D.) on the appli- 

 cation of solid hypergeometrical 

 series to frequency distribution* 

 in space, 389. y 



Wolf-note in bowed stringed instru- 

 ments, on the, 536. 



Xenotime, on the structure of, 421. 



X-rays, on the absorption of, 471. 



Zinc, on the vapour pressure of, 33. 



END OF THK THIRTY-THIRD VOLUME. 



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