

v 1 



LIST OF ILLUSTRATIONS. 



Plate 1. Drs. J. A. HARKER and P. CHAPPUIS on a Comparison of Platinum and 

 Gas Thermometers, including a Determination of the Boiling- Point of Sulphur 

 on the Nitrogen Scale. An Account of Experiments made in the Laboratory of 

 the Bureau International des Poids et Mesures at Sevres. 



Plates 2-3. Messrs. A. M. WORTHINOTON and R. S. COLE on Impact with a Liquid 

 Surface studied by the aid of Instantaneous Photography. Paper II. 



Plates 4-5. Messrs. C. T. HEYCOCK and F. H. NEVTLLE on Gold- Aluminium Alloys. 



