INDEX. 



551 



Larrnor (J.) on the significance of 

 Wiener's localization of the pho- 

 tographic action of stationary 

 light- waves, 97. 



Lee (J. B.) on a new instrument for 

 surveying by means of photo- 

 graphy, 544. 



Leighton (T.) on the Lower Green- 

 sand of East Surrey, 546. 



Li^ht-waves, on the photographic 

 action of stationary, 97. 



Liquefaction of gases, on the, 188, 

 298. 



Lumiere (A. & L.) on silvering glass 

 in the cold, 387. 



Luminescence produced on breaking 

 vacuum-bulbs, on the 115. 



Luminosity of gases, on the, 122. 



Macfarlane (Prof. A.) on Col. Hime's 

 ' Outlines of Quaternions,' 135. 



Magnetic field, on the change of 

 length in soft iron wire placed in 

 a uniform, 226. 



permeability, on the value of 



the, for rapid electrical oscillations, 

 297. 



Magnetism, on mirrors of, 213. 



Magnetization, on the relation be- 

 tween electromagnetic stress and, 

 254 ; on the influence of, on the 

 constants of elasticity in iron, 

 548 ; of iron by very small forces, 

 on the, 548. 



Marr (J. E.) on the tarns of Lake- 

 land, 544. 



Martini (T.) on the velocity of sound 

 in gases, 142. 



Mechanical equivalent of heat, on a 

 simple apparatus for determining 

 the, 160. 



Medley (E. A.) on tests of glow- 

 lamps, 389. 



Mirrors of magnetism, on, 213. 



Molecular force, on the laws of, 1. 



Natanson (Prof. L.) on the kinetic 

 interpretation of the dissipation 

 function, 455 ; on the kinetic 

 energy of the motion of heat and 

 the corresponding dissipation func- 

 tion, 501. 



Newton (R. B.) on a collection of 

 fossils from Madagascar, 543. 



Northrup (E. F.) on a method for 

 comparing the values of the specific 

 inductive capacity of a substance 

 under slowly and rapidly changing 

 fields, 78. 



Olszewski (Prof. C.) on the liquefac- 

 tion of gases, 188. 



Oscillator wave-train, on the passage 

 of an, through a plate of conduct- 

 ing dielectric, 309. 



Oxygen, on the liquefaction of, 192 ; 

 absorption spectrum and colour of 

 liquefied, 197. 



Paraffin, on the specific inductive 

 capacity of, under slowly and 

 rapidly changing fields, 78. 



Periodic series of the elements, on 

 the role of atomic heat in the, 106. 



Pern] eability, on the value of the 

 magnetic, for rapid electrical os- 

 cillations, 297. 



Perot (A.) on the dielectric power 

 of ice, 144. 



Photographic action of stationary 

 light-waves, on the, 97. 



Photography, on a new instrument 

 for surveying by means of, 544. 



Pickering (S. L T .) on the heat of 

 combination of substances in the 

 liquid and solid condition, 510. 



Pitch, on the subjective lowering of, 

 447. 



Porter (A. W.) on the influence of 

 the dimensions of a body on its 

 thermal emission, 268. 



Preston (Dr. S. T.) : comparative 

 review of some dynamical theories 

 of gravitation, 145. 



Prytz (Prof. K.) on an experiment 

 with solid carbonic acid, 308. 



Quaternions, on the equation i=j=- 

 k = y — 1 = — *= -j= - k in, 135. 



Radiation of heated gases, on the, 

 460. 



Resistance, on the measurement of, 

 175. 



Richarz (F.) on Helmholtz's electro- 

 chemical theory, 529. 



Ronayne's cubes, on, 183. 



Rosing (B.) on the change of length 

 in soft iron wire placed in a uni- 

 form magnetic field, 226. 



Riicker (Prof. A. W.) on the objec- 

 tive reality of combination tones, 



^ 341. 



Sadowsky (A.) on some experiments 

 with alternating currents, 377. 



St. John (C. E.) on the value of the 

 magnetic permeability for rapid 

 electrical oscillations, 297. 



Schmidt (W.) on the magnetization 

 of iron by very small forces, 548. 



