762 



Mossotti, Prof. O. F., on the spectra 

 of Fraunhofer formed by gratings, 

 and on the analysis of tlieir h'ght, 

 435. 



Nervous elements of the Mollusca, 

 chemical composition of the, 4. 



Newton's theory of the spectrum, ob- 

 servations on, 451. 



Nocturnal cooling of bodies exposed to 

 a free atmosphere in calm and se- 

 rene weather, on the, 453, 530. 



Planets, on the theory of the perturba- 

 tions of, 334. 



Plants, on the nocturnal cooling of, 

 453, 541. 



Plateau, Prof. J., experimental and 

 theoretical researches on the figures 

 of equilibrium of a liquid mass 

 withdrawn from the action of gra- 

 vity, 584. 



Pliicker, Prof., on the repulsion of the 

 optic axes of crystals by the poles 

 of a magnet, 353; on the relation 

 of magnetism to diamagnetism, 376; 

 experimental researches on the ac- 

 tion of the magnet upon gases and 

 liquids, 553 ; on a simple method 

 of increasing the diamagnetism of 



oscillating bodies : diamagnetic po- 

 larity, 579 ; on the determination 

 of the intensity of magnetic and 

 diamagnetic forces, 713. 



Pouillet, M., on the influence of heat 

 upon the intensity of magnetism, 

 752. 



Refraction, memoir on double, 238. 



Schmidt, Dr. C, on the comparative 

 physiology of the invertebrate ani- 

 mals, 1. 



Sonorous vibrations, application of the 

 dynamometer to the measurement 

 of, 509. 



Spectrum, observations on Newton's 

 theory of the, 451. 



Stearine, occurrence of, in various 

 Articulata and Mollusca, 9. 



Voltaic induction, observations on the 

 theory of, 505, 520. 



Weber, Prof. W., on the excitation 

 and action of diamagnetism ac- 

 cording to the laws of induced cur- 

 rents, 477 ; on the measurement of 

 electro-dynamic forces, 489. 



Wells's theory of the formation of dew, 

 observations on, 453, 530. 



END OF VOL. V. 



PRINTED BY TAYLOR AND FRANCIS, 



RED HON COURT, FLEET STREET. 



