Letter from Lieut. Maury to Admiral Smyth, For. Sec.R.S. ...page 165 

 Letter from W. Gravatt, Esq., F.R.S., to Colonel Sabine, Treas. R.S. 166 



Observations on the Respiratory Movements of Insects. By the late 

 William Frederick Barlow, Esq., F.R.C.S 167 



On the Impregnation of the Ovum in the Stickleback. By W. H. 

 Ransom, M.D 168 



On the applicability of Gelatine Paper as a Medium for Colouring 

 Light. By Horace Dobell, Esq - 172 



On the Theory of Definite Integrals. By W H. L. Russell, B.A. ... 174 



Anniversary Meeting 175 



On the Attraction of the Himalaya Mountains, and of the elevated 

 region beyond them, upon the Plumb-line in India. By the 

 Venerable John Henry Pratt, M. A., Archdeacon of Calcutta 176 



On the Value of Steam in the Decomposition of Neutral Fatty Bodies. 

 By George Wilson, Esq 182 



The Physical Theory of Muscular Contraction. By Charles Bland 

 Radcliffe, M.D 183 



On the Structure of some Limestone Nodules enclosed in Seams of 

 Bituminous Coal, with a Description of some Trigonocarpons con- 

 tained in them. By J. D. Hooker, M.D., F.R.S., and E. Binney, 

 Esq 188 



Remarks on the Anatomy of the Macgillwrayia pelayica and Chele- 

 * tropis Huxleyi (Forbes); suggesting the establishment of a new 

 genus of Gasteropoda." By John D. Macdonald, R.N 191 



On the Development of Muscular Fibre in Mammalia. By William 

 S. Savory, M.D., F.R.C.S 194 



On the General Integrals of the Equations of the Internal Equili- 

 brium of an Elastic Solid. By William John Macquorn Rankine, 

 Esq., Civil Engineer, F.R.S. L. & E 196 



Note to a paper read before the Royal Society on the llth of May, 

 1854. By J. W. Griffith, M.D./F.L.S 203 



Researches on the Theory of Invariants. By William Spottiswoode, 

 M.A., F.R.S . 204 



Ocular Spectres and Structures as Mutual Exponents. By James 

 Jago, A.B. Cantab., M B. Oxon 208 



The Bakerian Lecture. On the Nature of the Force by which Bo- 

 dies are repelled from the Poles of a Magnet ; preceded by an 

 Account of some Experiments on Molecular Influences. By John 

 Tyndall, Ph.D., F.R.S 214 



On Differential Transformation and the Reversion of Serieses. By 

 J. J. Sylvester, Esq., F.R.S 219 



Ocular Spectres and Structures as Mutual Exponents. By James 

 Jago, A.B. Cantab., M.B. Oxon. (concluded) 225 



Micro-chemical researches on the Digestion of Starch and Amyla- 

 ceous Foods. By Philip Burnard Ayres, M.D 225 



An Account of some recent Researches near Cairo, undertaken with 

 the view of throwing light upon the Geological History of the 

 Alluvial Land of Egypt. Part First. By Leonard Horner, Esq., 

 F.R.SS. L&E., F.G.S , 233 



