520 
INDEX. 
Chlor-melal, 95. 
Contributions to Terrestrial Magnetism, No. IX., 173. 
Crustaceans, structure of the liver in, 115. 
Crystalline polarity of bismuth, 2; of antimony, 13; of arsenic, 17. 
D. 
Dalrymple (John, Esq.). Description of an infusory animalcule allied to Notommata, 331. 
Dasyurus ursinus, on the dental tissues of, 408. 
Declination {magnetic) in the Atlantic, 173. 
Dental tissues of the Marsupial Animals, structure of, 403. 
Didelphis virginiana, on the dental tissues of, 410. 
E. 
Echinodermata, structure of the liver in, 109. 
Electrical currents (spontaneous) observed in the wires of the electric telegraph, 61. 
Electricity , Experimental Researches in. Twenty-second Series. On the crystalline polarity of 
bismuth and other bodies, and on its relation to the magnetic form of force, 1, 19. Crystal- 
line polarity of bismuth, 2 ; of antimony, 13 ; of arsenic, 17. Crystalline condition of various 
bodies, 19. Magne-crystallic force, 22. 
Embryonic condition of carapace and plastron of Chelonian Reptiles, 158, 159. 
F. 
Faraday (Dr.). Experimental Researches in Electricity. Twenty-second Series, 1, 19. 
Fish [Ganoid and Placoid), on the microscopic structure of the scales and dermal teeth of, 435. 
structure of the liver in, 118. 
G. 
Ganglia and nerves of the Heart, 43. 
Ganoid and Placoid Fish, on the structure of the scales and dermal teeth of, 435. 
Gases, on the Motion of, 349. 
Glaisher (James, Esq.). On the reduction of the Thermometrical Observations made at the 
Apartments of the Royal Society, from the years 1774 to 1781, and from the years 1787 to 
1843, 307. 
Graham (Thomas, Esq.). On the Motion of Gases. Part II., 349. 
Grove (W. R., Esq.). On the effect of Surrounding Media on Voltaic Ignition, 49. 
Gyrophora pustidata, analysis of, 393. 
H. 
Heart, on the ganglia and nerves of the, 43. 
Huxley (Thomas Henry, Esq.). On the Antomy and Affinities of the Medusse, 413. 
Hylceosaurus, on the osteology of, 271. 
Hypsiprymnus minor and penicillatus, on the dental tissues of, 406. 
