CONTENTS OF VOL. I. 



(FIFTH SEEIES). 



NUMBER I.— JANUAEY 1876. 



Page 



Dr. E. J. Mills on the First Principles of Chemistry 1 



Mr. E. T. Newton on the Microscopic Characters of some 



Peculiar Forms of Coke. (Plate I.) 16 



Mr. B. Mallet on " Mallet's Yolcanic Theory tested " by the 



Eev. O. Fisher 19 



M. C. Szily on the Second Proposition of the Mechanical 



Theory of Heat as deduced from the First 22 



Mr. O. Heaviside on Duplex Telegraphy 32 



Mr. J. W. L. Glaisher on the Representation of an Uneven 

 Number as a Sum of four Squares, and as the Sum of a 



Square and two Triangular Numbers 44 



Mr. F. Guthrie on Salt Solutions and Attached Water 49 



Mr. S. H. Burbury on the Second Law of Thermodynamics in 



connexion with the Kinetic Theory of Gases 61 



Mr. T. H. Marvin on the Production of Spectra by the Oxy- 



hydrogen Flame 67 



Prof. E. Clausius on a new fundamental Law of Electrody- 

 namics 69 



Proceedings of the Eoyal Society : — 



Mr. S. C. Tisley on a new Form of Dynamo-Magneto- 

 Electric Machine 71 



Mr. J. E. H. Gordon on the Determination of Yerdet's 



Constant in Absolute Units 73 



Prof. O. Eeynolds on Boiling-Friction 75 



Dr. Andrews on the Physical Properties of Matter in 

 the Liquid and Gaseous States under varied con- 

 ditions of Pressure and Temperature 78 



On the Distribution of Magnetism in Circular or Elliptic Plates 



of Steel, by E. Duter 85 



On the Temperature of the Upper Strata of the Atmosphere, 



by D. Mendeleef 86 



On the Action of Flames in presence of Electrified Bodies, by 

 M. Douliot 88 



NUMBEE II.— FEBEUAEY. 



Prof. E. Edlund's Experimental Proof that the Eesistance 

 to Galvanic Conduction is dependent on the Motion of 

 the Conductor 89 



