CONTENTS OF VOL. XLL 



(FIFTH SEEIES). 



NUMBEE CCXLVIIL— JANUAEY 1896. 



Page 

 Mr. E. H. G-riffiths and Miss D. Marshall on the Latent Heat 



of Evaporation of Benzene 1 



Miss Dorothy Marshall and Prof. W. Eamsay on a Method 

 of Comparing directly the Heats of Evaporation of different 



Liquids at their Boiling-points 38 



Mr. F. W. Lanchester on the Eadial Cursor : a new addition 



to the Slide-Eule 52 



Dr. E. H. Barton on a Graphical Method for finding the 



Focal Lengths of Mirrors and Lenses 59 



Mr. Bolio Appleyard on a " Direct-reading " Platinum Ther- 

 mometer 62 



Mr. G. J. Burch on a Method of Drawing Hyperbolas 72 



Notices respecting New Books : — 



Prof. J. J. Thomson's Elements of the Mathematical 



Theory of Electricity and Magnetism 75 



Mr. E. A. Gregory's Exercise Book of Elementary 



Physics for Organised Science Schools etc 76 



Proceedings of the Geological Society : — 



Mr. J. E. Marr on the Tarns of Lakeland 77 



Col. H. W. Feilden on the Glacial Geology of Arctic 

 Europe and its Islands — Part I. Kolguev Island .... 77 

 On Underground Temperatures at Great Depths, by Alexander 



Agassiz 78 



On the Influence of Electrical "Waves on the Galvanic Ee- 

 sistance of Metallic Conductors, by H. Haga 79 



