INDEX. 



567 



nected with the boiling of, 85 ; on 

 the specific volumes of, 551. 

 Lockyer (J. N.) on a new map of the 



solar spectrum, 144. 

 Lodge (O. J.) on nodes and loops in 

 connexion with chemical formulae, 

 367 ; on the flow of electricity in a 

 uniform plane conducting surface, 

 4/5. 

 Magnetic distribution, studies on, 

 257, 348. 



Magnetism, on the influence of the 

 texture of iron on its, 255. 



Magnetization and demagnetization 

 of iron, cast iron, and steel, on the 

 velocity of, 79. 



Magnets, on the action of, on rarefied 

 gases, 77 ; formed from compressed 

 powders, on, 255. 



Mallet (R.) on the temperature attain- 

 able by rock-crushing and its con- 

 sequences, 1 ; on the origin and 

 mechanism of production of the 

 prismatic structure of basalt, 122, 

 201. 



Maps of the world, on, 431. 



Mayer (A. M.) on a method of ob- 

 taing thermographs of the isother- 

 mal lines of the solar disk, 159. 



Merriman (M.) on the flexure of con- 

 tinuous girders, 179. 



Metal, on the chemical and spectro- 

 scopic characters of a new, 414. 



Micrometer for spectroscopic ana- 

 lysis, on a new form of, 81 . 



Mills (Dr.E. J.) on nitrated toluol, 17. 



Motion of a particle from rest towards 

 an attracting centre, on the, 20. 



Musical consonance, on, 164, 336. 



Nodes and loops in connexion with 

 chemical formulas, on, 367. 



Oceanic circulation, on the wind and 

 gravitation theories of, 242, 286 

 402, 489. 



PfafF(Prof. F.) on the plasticity of 

 ice, 333. 



Phosphorus, on the application of, to 

 the " poling " of copper, 542 ; on 

 the atomic volume of, 554. 



Photographic irradiation, on, 46. 



Platinum and iridium, on the density 

 of pure, and their alloys, 558. 



Polariscope, on a new, 13. 



Quartz, on the rotatory polarization 

 of, 492. 



Reynolds (Prof. O.) on the refraction 

 of sound by the atmosphere, 62. 



Roberts (W. C.) on the liquation, fu- 

 sibility, and density of certain alloys 

 of silver and copper, 553. 



Rock-crushing, on the temperature 

 attainable by, and its consequences, 

 1, 302. 



Rowland (Prof. H. A.) on Kohl- 

 rausch's determination of the abso- 

 lute value of the Siemens mercury 

 unit of electrical resistance, 161 ; on 

 magnetic distribution, 257, 348. 



Royal Society, proceedings of the, 62, 

 144, 548. 



Sarazin (E.) on the rotatory polariza- 

 tion of quartz, 492. 



Schwendler (L.)on the general theory 

 of duplex telegraphy, 458. 



Selenium, on the influence of light 

 upon the conductivity of crystal- 

 line, 416. 



Siemens (W.) on the influence of 

 light upon the conductivity of crys- 

 talline selenium, 416, 



Siemens mercury unit of electrical 

 resistance, on Kohlrausch's deter- 

 mination of the absolute value of, 

 161, 404. 



Silver and copper, on the liquation, 

 fusibility, and density of certain 

 alloys of, 553. 



Sky, on the polarization of the light 

 of the, 497. 



Solar spectrum, on a new map of the, 

 144. 



Soret (J. B.) on the temperature of 

 the sun, 155; on the rotatory po- 

 larization of quartz, 492. 



Sound, on the refraction of, by the 

 atmosphere, 62, 146. 



Spectra, on the cold bands of dark, 

 331. 



Spectral- analytical researches, 417, 

 527. 



Spectroscopic analysis, on a new form 



of micrometer for use in, 81. 

 Steel, on the velocity of magnetization 



and demagnetization of, 79. 

 Stoletow (Prof. A.) on Kohlrausch's 

 determination of the Siemens mer- 

 cury unit of electrical resistance, 404 . 

 Sun, on the temperature of the, 155. 

 Telegraphy, on the general theory of 

 duplex, 458. 



