VI CONTENTS OF VOL. XXXVII. FIFTH SERIES. 



NUMBER CCXXV1IL— MAY. 



Page 

 Prof. S. P. Langley on the Internal Work of the Wind. 

 (Plates V.-IX.) 425 



Mr. Thomas H. Blakesley on a new Electrical Theorem .... 448 



Mr. Owen Glynne Jones on the Viscosity of Liquids 451 



Mr. C. V. Boys on the Attachment of Quartz Eibres 463 



Mr. T. H. Littlewood on a Method of finding the Refractive 

 Index of a Liquid; applicable when the Liquid is not 



Homogeneous 467 



Mr. M. Carey Lea on Transformations of Mechanical into 

 Chemical Energy. (Third Paper.) Action of Shearing- 

 Stress (continued) 470 



Prof. J. H. van't Hoff on the Origin of the Theory of Solutions 475 



Mr. James H. Gray on the Elasticity of Spider Lines 491 



Messrs. J. Alfred Wauklyn and W. J. Cooper on the Method 

 of Eractional Distillation illustrated by the Investigation of 



Kerosene 495 



Notices respecting New Books : — 



Dr. Irving Stringham's Uniplanar Algebra 499 



Dr. B. Williamson's Elasticity 501 



Dr. A. Macfarlane's Definitions of the Trigonometric 



Eunctions 501 



On the Thermal Behaviour of Liquids, by Profs. W. Bam say 



and S. Young 503 



Supplementary Remarks on Changes of Temperature caused 



by Contact of Liquids with Silica, by Dr. G-. Gore 504 



Polarization of Non-Diffracted Infra-red Radiation by Wire 



Gratings, by H. Du Bois and H. Rubens 505 



Magnetization of Hollow and Solid Cylindrical Cores, by H. 



Du Bois 507 



Molecular Energy of Gases — a Correction 507 



On a Eundamental Question in Electro-Optics, by Prof. G. 



Quincke 508 



Molecular Energy of Gases, by Dr. G. Gore 508 



NUMBER CCXXIX.— JUNE. 



Prof. Arthur Schuster on Interference Phenomena 509 



Mr. J. W. Kearton on a New Mode of making Magic Mirrors 546 



Mr. P. L. Gray on the Minimum Temperature of Visibility . . 549 

 Mr. M. Carey Lea on a New Method of Determining the 



Relative Affinities of certain Acids , 557 



Dr. S. P. Thompson and Mr. Miles Walker on the Design 



and Winding of Alternate-Current Electromagnets 564 



