RATIO OF SPECIFIC HEATS. 



29 



TABLE OF COMPARATIVIi VALUKS OK H. 



Observer. 



Rontgen, 1873 



Kayser, 1877 



Wullner, 1878 



Paquet, 1885 



J. Webster Low, 1894 



Lummer and Pringsheim, 1894. 

 Manoevrier, 1895 



Air. 



Oxygen. 



1-3977 



Carbon-Dioxide. Hydrogen. 



'■3052 

 '•3054 



1. 291 



1-2995 

 1.298 



1-385: 



1.4084 

 1-384 



Physikalisch-Technische Reichsanstalt, 

 Charlottenburg, Germany, 

 October, 1897. 



