APPENDIX. 



337 



! 





TABLE III. 



TABLE of the Expansion of Air and other Gases by Heat, when per- 

 fectly free from Vapor. 



* # * The above numbers are obtained from Dr. Dalton's experiments, 

 which give an average of 5^3 part, or -00207 for the expansion by each 

 degree of Fahrenheit. Gay Lussac found it to be equal to -%-$ part, or 

 002083 for each degree of Fahrenheit ; and that the same law extends 

 to condensable vapors when excluded from contact of the liquids which 

 produce them. 



