INDEX. 595 



I. 



Ions, table of, 114. 



Ivory (James, K.H.). On the equilibrium of a mass of homogeneous fluid at liberty, 491. 



K. 



KoNiG (Charles, Esq.). His note prefixed to Mr. Woodbine Parish's notice of a large mass of 

 meteoric iron now in the British Museum, 5S. 



L. 



Laws of the tides, reflections on the theory of, 40. 



Lister (Joseph Jackson, Esq.). Some observations on the structure and functions of tubular 



and cellular Polypi, and of Ascidiae, SQ5. 

 Lubbock (John William, Esq.). On the theory of the moon, 123, 127. 

 . On the tides, 143. 



M. 



Maclaurin, on his demonstration of the equilibrium of the oblate elliptical spheroid, 517. 

 Marsupial animals, on the generation of, with a description of the impregnated uterus of the Kan- 

 garoo, ^SS. 

 Medulla oblongata and Pons Varolii, on the striated septa in the, 473. 

 Moira brine spring, analysis of, with researches on the extraction of bromine, 577. 

 Moon, on the theory of the, 123, 127. 



N. 



Negative achromatic lens, on the principle of construction of, and general application to tele- 

 scopes and eye-pieces of every description, 205. 



Newport (George, Esq.). On the nervous system of the Sphinx ligustri, Linn., (Part IL) during 

 the latter stages of its pupa and its imago state, and on the means by which its development 

 is effected, 389. 



North magnetic pole, on the position of the, 47. 



O. 



Ornithorhynchus paradoxus , on the ova of, 555. 



Owen (Richard, Esq.). On the ova of the Ornithorhynchus paradoxus, 555. 



• On the generation of the marsupial animals, with a description of the 



impregnated uterus of the Kangaroo, 339. 



P. 



Palmer (Henry R., Esq.). Observations on the motions of shingle beaches, 567. 



Parish (Woodbine, Esq.). Notice as to the supposed identity of the large mass of meteoric iron 



now in the British Museum, with the celebrated Otumpa iron described by Rubin db Celis 



in the Philosophical Transactions for 1786, 5S. 

 Philip (A. P. W., M.D.). On the nature of death, 167. 

 Polypi and Ascidics, observations on the structure and functions of, ZQ5. 

 Pond (John, Esq. A.R.). Some suggestions relative to the best method of employing the new 



zenith telescope lately erected at the Royal Observatory, 209. 

 Powell (Rev. Baden). On the repulsive power of heat, 485. 



