( 550 ) 



For cniitoii dioxide avo may use the Anlno deid^'ed (]ii"ectl_v from 

 obscrxatiou wliicli will be "iveii later : 





— O.U051375. 



Tliese \aliies iiniy also be taken with siitÜicieut acciii-acv tor the 

 teiiiperatiii-e used (J 9 .82 C). Tiie eiMiiposition of the mixture cousidercd 

 is easily t'ouud to be: 0.19942 (oxyu-eii iu carbon dioxidel. 



^ 4. lu the Nolunienometer 1 ha\e determined the eoni|ii-essibility 

 at ordinarA pressures as indicated in ('omm. N". 84, These Pi'oc. ^ 

 .Alarch 28. 1903, p. 641, for the mixtures w ith moleculai' pi()[)oi'tions 

 of 0.1994 and 0.3072 (oxvgcMi iji cai'bon dioxide), and also that for 

 the pure carbon dioxide. Althouuh this has already been done by 

 Rk(;n VL i,T Vi, A.MA(fAT'j, Fkus"), Lkduc', aiid lately l)y ('iiArnisyi it 

 seemed to me im])ortant to make that determinalioii \\\\\\ the same 

 carbon dioxide and in the same apparatus as f(n- the mixtures, so 

 as to ha\e the most fa\tMiral)le circumstances for the com[)arison ol' 

 the conduct of the mixtures with that of pure carlion diitxide. 



Table XII ii,i\es the values diivctly (lei'i\ed tVom the obsei-\ations 

 tor \'olum(\ pressure and lempei-ature bcloiiininii' to each otlici'. The 

 columns .1, B and C refer to diiferent adjustmeiits with the same 

 quantity of üas. 



T A H L E Xll. 

 (I. (iirbon dioxide. 



h. Mixture with molecular proportion : .c = 0.1994. 



B 



Volume I l.(XM>t><x // ! ().!»'. H K U Z'', 



Pressure.... 1)7. 70S nl.SlScni. 



Temperature , -iO.CKi lO.'Jll 



1) Mém. dc rinsl. de France, t. XXI, p. -WO. 



■2) Ann. dc Cliim. ct de phys. (i) t. i2t>. p. -iiii, ls73. 



■^) Wied. Ann. Bd. 35, \). 480, 18S8. 



■^) Keclicreliet; sur les Gaz, p. SO. 



■') Trav. el Man. du IJureau Inlernat. des l'vk\i et Mesures, t. XIIL 1U03. 



