CONTENTS OF VOL. VII. — FOURTH SERIES. V 



NUMBER XLV.— APRIL. 



Page 



Mr. T. S. Hunt on the Composition and Metamorphoses of 

 some Sedimentary Rocks ■ ■ ■ • • • ■;;••• ^^^ 



Mr W J. M. Rankine on the Mechanical Action otHeat i,con- 

 cluded) . (With a Plate.) • • • • • 239 



Prof. Grassmann on the Theory of Compound Colours. (With 



a Plate.) :''"'".' ".'V' '■ i o«(; 



Prof Faraday on Electro- dynamic Induction m Liquids ^OD 



Mr T. Dobson on the Storm- tracks of the South Pacific Ocean. 



(With a Plate.) •;■••••.•••••••••■• ^^^ 



Prof Ma°-nus on an Apparatus for the illustration of various ^ 



phaenomena of Rotating Bodies. (With a Plate.) 272 



Mr A. H. Church on the Spheroidal State of Bodies 27o 



Prof. Challis on two new Theorems relating to the Moons ^ 



p,' 1 .. 2/8 



Mr. a! Normandy on the Spheroidal State of Water in Steam- 



, ., 283 



boilers - ^„- 



Proceedings of the Royal Society ^°' 



. Royal Institution -^^ ^ 



On the Heat produced by an Electric Discharge, by R. Clausius. 297 

 On some peculiar Reductions of Metals in the Humid way. by 



Prof. Wohler V "t" ' "• onl 



On the Decomposition of Water by the Pile, by J. Jamin .... 29b 



Lithologic Studies, by C. Sainte-Claire Deville ^UU 



Meteorological Observations for February 1854 ^UJ 



Table 304 



NUMBER XLVI.— MAY. 

 M. R. Kohlrausch's Theory of the Electric Residue in the 



Leyden Jar ■/•■.■.'".'":' W ' Vv' " 



Mr S V Wood on some Tubular Cavities in the Coralline 

 Crag at Sudbourn and Gedgrave near Orford. (With a Plate.) 320 



The Rev. J. B. Reade on some early Experiments in Photo- 

 graphy, being the substance of a Letter addressed to Robert 

 Hunt, Esq .■••y-'-A-':\ ^ 



Mr. J. J. Sylvester's Note on the " Enumeration of the Contacts 

 of Lines and Surfaces of the Second Order " ;••••• ^^^ 



Messrs. W. E. Logan and T. S. Hunt on the Chemical Com- 

 position of Recent and Fossil Lingulce, and some other Shells. 335 



Mr. A. Cayley's Developments on the Porism of the In-and- 

 circumscribed Polygon • '^^^ 



Dr. Martin Barry's Note on the Penetration of the Spermatozoon 

 into the Interior of the Ovum ......... 346 



Prof. W.Thomson on the Heat produced by an Electric Discharge. d47 



M P Riess on the Generation of Heat by Electricity 348 



Messrs. J. SpiUcr and W. Crookes on a Method for preserving 

 the Sensitiveness of Collodion Plates for a considerable time. 349 



