INDEX TO ARTICLES. 407 



Colored rings. Provostaye and Desains. Jour, de C. et de P., Dec., 1849. 

 Crystals of one axis, distinctive character for. Moigno. C. R., March 25. 

 Crystallization, columnar, of ground ice. Scoresby. Jameson, Jan. 

 Crystallized bodies, superficial conducting power of, for tension electricity. Senar- 

 mont. Jour, de C. et de P., March. 



Crystallized bodies, electric properties of. Wiedeman. Jour, de C. et de P., June. 

 Diamagnetism of ice. Bruner. Poss., No. 1. 



Diamagnetic bodies, supposed polarity of. Faraday. Phil. Trans., Part 1. 

 Disappearance of Newton's rings, mode of. Stokes. Ath., Aug. 24. 

 Disturbance produced in the vibratory movements of one system of molecules by the 

 influence of another system. Cauchy. C. R., Jan. 14. 

 Dust, storms of, India. Baddely. Brewster, Aug. 

 Dynactinometer. Claudet. Ath., Aug 24. Matteucci. Ath., Aug. 

 Earth, conducting power of. Napier. Brewster, Nov. 

 Electricity, atmospheric, phenomena of. Mene. C. R., July. 



connection of. with the condensation of vapor. Brewster 

 No. 242. 



Electricity of condensation, connection of, with lightning and the aurora. Phillips. 

 Brewster, Nos. 241 and 243. 

 Electricity, researches on. Faraday. Phil. Trans., Part 1. Sill., Sept. 



development of, on plunging heated metals into liquids. Posg., No. 1. 

 at hieh tension, instruments for measuring. Davy. C. R., March 18 

 Electric light. Min. Jour., Jan. 19. 



Electro-dynamic action, law of. Cellerier. C. R., June 3. 

 Electro-motive force of gases. Brewster, No. 241. 

 Electro-physiological researches. Matteucci. Phil. Trans., Part 1. 

 Equation between the temperature, and maximum elasticity of steam and other vapore 

 Rankine. Jour, of F. I.. Feb., March. 



Expansion of elastic fluids, influence of the known laws of motion on. Blake. Sill., May. 

 Eye, polarizing structure of. Brewster. Ath., Aug. 10. 



Forces experienced by inductively magnetized ferromagnetic or diamagnetic non-crys- 

 talline substances. Thomson. Brewster, Oct. 



Forces, vital and physical, relations of. Newport. Mag. of Nat. Hist., Nor. 

 Fringes of interference, fictitious displacement of. Siokes. Ath., Aug. 

 Galvanic currents, means of estimating. Feilitsch. Pogg., No. 9, 1S49. 

 Gases, mode of illustrating velocity of sound in. Gibbes. Am. Ass., 115. 

 Heat, latent, of the fusion of ice. Person. Jour, de C. et de P., Sept. 



latent, of steam under different pressures. Regnault. Pogg., No. 10, 1849. 

 mechanical equivalent of. Joule. Phil. Trans., Part 1. 

 polarization of, by simple refraction. Jour, de C. et de P., Oct. 

 " quantity of, evolved from atmospheric air by mechanical compression. Sill.. 

 July, Sept. 



Imases, multiple, of an object placed between two plane mirrors. Berthin. Jour, de 

 C. et de P., July. 



Interference between two rays of light, and chromatic polarization produced by thick 

 crystallized plates. Fizeau and Foucault. Jour, de C. et de P., Oct. 

 Intonation, perfect musical. Poole. Sill., Jan., March. 



Law which governs the electric irritation of the nerves. Bois-Reymond. C. R., April 8. 

 Jour de C. et de P.. Sept., Oct. 



Lieht, intensity of, in rays reflected from a transparent or opaque body. Cauchy. C. 

 R.. April 22. 



Light, properties of. Brougham. Phil. Trans.. Part 1. C. R., Jan. 21. 

 Lightning, remarkable appearance of. Joule. Brewster. Aug. 

 remarkable effects of. Thomson. Brewster, July. 

 Magnetic survey of the Indian Archipelago. Elliot. Roy. Soc., 75. 

 Magnetism and Diamagnetism. Pliicker. Jour, de C. et de P., June, 

 influence of, on the cohesion of liquids. Poirg., No. 1. 

 revolution of the planes of polarization of radiant heat by means of. Pro- 

 vostaye and Desains. Pass.. No. 12, 1343. 

 Magnetism of steam. Phillips. Brewster. Oct. 



terrestrial, state and prospects of the science of. Airy. Ath., March 23. 

 Mechanics, relation of the laws of, to perpetual motion. Day. Sill., Sept. 

 Motion, propagation of. in solid and liquid bodies. Westheim. C. R., Dec. 10, 1349. 

 Photography, application of, to the self-registration of magnetic and meteorological in- 

 struments. Lefroy. Sill., May. 

 Photometry. Araso. C. R. March IS. 



electric. Masson. Jour, de C. et de P , Sept. 

 Planisphere, double. Keller. C. R., May 16. 

 Platina, plating with. Bromers. Poly. Jour., 633. 

 Polariscope, new. Senarmont. Jour de C. et de P.. March. 



