( •■'^'^2 ) 



i]i lahle XX: llic liisl coIiidih o-ives ilie (liirci'eiit <leiisiiies (ex|iresse(i 

 ill tei'iii> of" llir llieorolical iionnal (leiisilv), the follow iiiu' coliiiims 

 llie \;ilues of jir "neloJi^uiji^U' lo il. <'acli linie lor llic k'niperal ure 

 ineiitioiKMl al llie head of llio colniiui. 



T A W \. ¥. XX. 

 Isotliermals of carbon dioxide. 



340 j 0.2273 . 0.2321 0.2.-).i4* 0.2803 0.32.-).t 0.3817 



360 i 0.230.^ 0.2401 0.2588 0.2900 0.3302 



3S0 0.2427 O 2530 0.2742 O 3073 



400 0.2690 0.2800 0.3031 0.3376 , 



420 0.3-1L9-' 0.3230 



§ 4. ?•//,/. was reduced to tlie same temperature for tlie isotliermals 

 a and // in llie followiiiu' way: From the liei<iht of the li(jnid iiieiii.sciis 

 wo dii-octly dei'i\ed the \dliinio of ihc \apoiii- phase: r,.„^, If r^ is 

 ihe specilif \'ohinie of ihe e.xisteiit li(|uid [)iiase. r, ihe sjjocilic \"olume 

 of the \aponr (a> unily we always haxc heiv iho theoretical normal 

 volume), we tiiid : 



'cap. 

 df 



Vr, 



ap. 



l\ ih\ 



c (h\ 



i\ \ t\ dT v~~-i\ dT 



