CONTENTS OF VOL. V. FOURTH SERIES. Yll 



^rr.,.^..v. Page 



Mr. W. J. M. Rankine on the Mechanical Theory of Heat. — 



Specific Heat of Air 437 



Mr. J. J. Walker on the Iris seen in Water 439 



Mr.W. Hardie's Description of a New Pseudoscope. (With a 



I Plate.) , 442 



Mr. J. J. Sylvester on a remarkable Modification of Sturm's 



jt Theorem 446 



Brpf . Rammelsberg on a new Chiviatite, Miqeral from Peru . , 457 

 Proceedings of the Cambridge Philosophical Society . . 'iVfifn^fP,'^^ 



Royal Society ,. .464 



M. A. Masson's Remarks on Electric Light. 468 



M. J. Nickl^s on the Permeability of Metals to Mercury, . , . ^ 4§9 



Meteorological Observations for April 1853 .^^^ .^f^.^fl 



^a i Mjuj^i ^Table ijfoi^ vH ,4f I 



CM , «..taM 



.^.^UMBER XXXV.— SUPPLEMENT TO VOL. V.^ ^y 



M. V. Regnault's Researches upon the Specific Heat of Elastic 



Fluids 473 



Mr.W. J. M. Rankine on the Mechanical Theory of Heat.— 



Velocity of Sound in Gases 483 



Mr. J. Napier on Copper Smelting (concluded) 486 



Mr. G. B. Jerrard on a Method of Transforming Equations by 



means of Symmetric Functions (continued) 493 



Dr. Schunck on Rubian and its Products of Decomposition 



(concluded) 495 



Mr. T. T. Wilkinson on Mathematics and Mathematicians. 



The Journals of the late Reuben Burrow (continued) 514 



Mr. R. Carmichael on the Singularities of Physical Science, 



|,^ their Classification, and their Uses 522 



Mr. T. S. Hunt's Considerations on the Theory of Chemical 



^p Changes, and on Equivalent Volumes 526 



Notices respecting New Books : — Mr. H. Godfray's Elementary 

 gp Treatise on the Lunar Theory, with a brief sketch of the 



pp History of the Problem up to the time of Newton 535 



lQn a Method of distinguishing the Volatile Oils of the series 



or. C^ HS by C. Greville Williams 536 



"Note on Inductive Electrical Machines, and on a ready means 



of Increasing their Effect, by M. Fizeau 537 



Index 540 



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