INDEX. 
563 
Hobarton, on the influence of the moon on the magnetic declination at, 557. 
Huxley (Thomas Henry, Esq.). On the Morphology of the Cephalous Mollusca, as illustrated 
by the Anatomy of certain Heteropoda and Pteropoda collected during the Voyage of Her 
Majesty’s Ship Rattlesnake in 1846-50, 29. 
Hijgrometric condition of the air, variation of, as observed in balloon ascents, 336. 
I. 
Impregnation of the ovum in the Amphibia, on the, 233. 
Intercalations, on the theory of, 480 ; applied to algebraical equations, 486 ; as applicable to two 
functions of the same degree, 510. 
J. 
Jones (C. Handfield, M.D.). Further Inquiries as to the Structure, Development, and Function 
of the Liver, 1. 
Jones (Henry Bence, M.D.). On the Dissolution of Urinary Calculi in dilute Saline Fluids, at 
the Temperature of the Body, by the aid of Electricity, 201. 
Joule (J. P., Esq.) and Thomson (Wm., M.A.). On the Thermal Effects of Fluids in Motion, 
357. 
L. 
Light, on the change of refrangibility of, 385 ; degraded, degradation of, 387 ; fluorescence of, 
ibid. 
Liver, further inquiries as to its structure, development, and function, 1. Structure in Fishes, 3. 
Development in Fishes, 6. Structure in Reptiles, 8. Development in Reptiles, 10. Structure 
and development in Birds, 11 ; in Mammalia, 14. Function of the parenchyma, 19. 
M. 
Magnetic declination, on the influence of the moon on the, at Toronto, St. Helena, and Hobarton 
549. 
Magnetic disturbances, on periodic laws in, 165. 
Mammalia, structure and development of the liver in, 14. 
Meteorological observations in four balloon ascents, account of, 312. 
Molecular influences, on. Part I. Transmission of heat through organic structures, 217. Con- 
struction of the instrument used in the investigation, 218. Table of substances submitted to 
experiment, and results, 223. 
Mollusca, the Cephalous, anatomy of, 29. Anatomy of Firoloides, 30 ; of Atalanta, 36. Anatomy 
of Pteropoda, 39. The archetype of the Cephalous Mollusca, 44. 
Moons mean motion, on the secular variation of the, 397. 
Muscular system in Cordylophora and other Tubulariadae, 372. 
N. 
Nerves, spinal, on the posterior and anterior roots of, 348, 350. 
Nesodon, description of species of, with remarks on the primary group (Toxodontia) to which that 
genus is referable, 291 ; generic characters of, 299. 
