CONTENTS OF VOL. XXX. 



(FOURTH SERIES.) 



NUMBER CC.— JULY 1865. 



Page 

 Mr. T. R. Edmonds on the Law of Density of Saturated Steam 



expressed by a New Formula 1 



Prof. W. A. Miller on Chemical Nomenclature 11 



The Astronomer Royal on Hemiopsy 19 



Mr. J. H. Cotterill on Elliptic Ribs 21 



Dr. Schroder van der Kolk on the Velocity of Sound 34 



Dr. T. Woods on the Thermic Equivalent of Magnesium ... 49 



Prof. Cayley on the Projection of the Ellipsoid 50 



Mr. P. E. Chase on Numerical Relations of Gravity and Mag- 

 netism 52 



Mr. G. C. Foster on Chemical Nomenclature 57 



Proceedings of the Royal Society : — 



Dr. Bence Jones on the Rate of Passage of Crystalloids into 

 and out of theVascular and Non- Vascular Textures of the 



Body 59 



Prof. W. Thomson on the Elasticity and Viscosity of Metals. 63 



Prof. W. H. Miller on Two New Forms of Heliotrope . . 71 

 On the Spectral Rays of the Planet Saturn. Letter from Father 



Secchi to M. Elie de Beaumont 73 



On the Wave-Length of the Blue Indium-Line, by J. Muller. . 76 

 On some Thermo-elements of great Electromotive Force, by J. 



Stefan 77 



On the Terrestrial Rays of the Solar Spectrum, by M. Janssen. 78 



NUMBER CCI.— AUGUST. 



Prof. Magnus on the different Properties of the Heat radiated 

 by Rough and by Bright Surfaces. (With a Plate.) 81 



Prof. Norton on Molecular Physics 95 



Prof. Young's Demonstration of Newton's Rule for determining 

 the number of Imaginary Roots in an Equation 113 



Sir David Brewster's Observations on the Polarization of the 

 Atmosphere, made at St. Andrews in 1841, 1842, 1843, 

 1844, and 1845 118 



