OF ARTS AND SCIENCES. 

 TABLE XXIX. — Ratio of Specific Heats of Air. 



143 



Method. 



Method of Clement & I)e'- ) 

 Bonnes, globe -0 litres . . J 



Never fully published . . . 



Method of Clement & Dc'- ) 

 sonnes ) 



Using Breguet thermometer . 



Clement & Dcsorincs, globe ) 

 89 litres . J 



Clc'ment & Dcsormes . . . . 



Clement & Dcsormes, globe 

 10 litres 



Passage of gas from one ves- 

 sel into another, globes GO J- 

 litres ) 



Pressure in globe changed by / 

 aspirator, globe 25 litres . ( 



Heating of gas by electric ) 

 current J 



Clement & Dcsormes . . . 



Barometer under air-pump ) 

 receiver of 6 litres . . . \ 



Compression and expansion | 

 of gas by piston . . . . j 



Clement & Dcsormes with ) 

 metallic manometer, globe > 

 70 litres ) 



Compression of gas by piston . 



Observer. 



Clement & De'sormes 



tsS 



Gay-Lussac & Welter 19 

 Delaroehe & Berard* 1 

 Favre & Silbermann 23 

 Masson 20 .... 

 Weisbach 21 .... 

 Hirn 22 



Cazin 24 



Dupre 25 



Jamin & Richard 23 . 

 Tresca et Laboulaye 29 

 Koblrausch 25 . . . 



Regnault .... 



Rontgen 27 

 Am a gat 30 



Date. 



181-2 

 Published in 



1819 



1853 

 1858 

 1859 

 1861 



18G2 



1863 



18G4 

 18G4 

 18G9 



1871 



1873 

 1874 



Ratio 



of I Specific 

 Heats. 



1.354 



1.3748 



1.249 



1.421 



1.4196 



1.4025 



1.3845 



1.41 



1.41 



1.302 



Results lost 



in the siege 



of Paris. 



1.4053 

 1.397 



References. (Tables XXVI. to XXX.) 



1 Physical Society of Berlin, Fort, der Phys., 1858. 



2 Joule, Phil. Mag., ser. 3, vol. xxvj. See also Mec. Wiirmeaquivalent, 

 Gesammelte Abhandlungen von J. P. Joule, Braunschweig, 1872. 



3 Joule, Phil. Mag., ser. 3, vol. xxiii. See also 2 above. 



4 « « " " » X xvi. " " 

 6 « « " « << xxvii. " " 



6 <( « « « >' xxxi, " •< 



7 Hirn, Thc'orie Mc'c. de la Chaleur, ser. 1, 3 m0 ed. 



8 Edlund, Pogg. Ann., cxiv. 1, 1865. 



9 Favre, Comptes Rend., Feb. 15, 1858; also Phil. Mag., xv. 400. 



10 Violle, Ann. de Chim., ser. 4, xxii. 64. 



11 Quintus Icilius, Pogg. Ann., ci. 69. 



12 Boscha, Pogg. Ann., cviii. 162. 



13 Joule, Report of the Committee on Electrical Standards of the B. A., Lon- 

 don, 1873, p. 175. 



I* H. F. Weber, Phil. Mag., ser. 5, v. 30. 



15 Favre, Comptes Rend., xlvii. 599. 



16 Regnault, Rel. des Experiences, torn. ii. 

 J ? E. Wiedemann, Pogg. Ann., clvii. 1. 



