10(U 



= 0,435. The ,'?-valiies from tlie equation of state are still somewhat 

 too high. 



(/. The isotherm of — 11 6°,62 = 156,47 absolute. This yields 



111 



= 1,039, hence 3,424 m = 3,556. 



+ 5 : n2 



13.863 I 26.480 

 37.250 I 90.5631 

 50.259 I 159.71 

 54.922 210.02 

 60.669 ; 331.29 



0.2888 

 0.7760 

 1.0471 

 1.1442 



11.248 il 0.3287 10.824 



3.289 

 1.865 

 1.418 



1.2639 0.8990 



I 1.2429 



I 2.4992 



3.6551 



2.867 

 1.427 

 0.976 



7.5120 ! 0.475 



0.424 

 0.422 

 0.438 

 0.442 

 0.424 



Mean ^430^ 

 With 7' =156,5 corresponds y = 0,738, yielding ,% = 0,422, 

 /?„ = ,:?„ X i>500 = 0,429. As, just as in the above tables, /^ > 1 

 (the last value is a little smaller), no appreciable diminution of the 

 limiting value ji,, can be expected for /i yet. Now that we approach 

 the critical temperature of Argon, however, the mean value 0,48 

 foiuid in the table (calculated from tlie equation of state; agrees with 

 tiic theoretical value of ,i; which can be calculated from our formula. 

 ,'. The isotherm of — I2r,21 r= 151,88 absolute, so slightly above 

 the critical temperature. Here //i = 1.008, hence 3,424 »i becomes 

 = 3,452. 



Mean 0.419 



With r=: 151,88 corresponds y = 0,734, ^;fc' =0,419, il, = ^,X 

 X 1,491 = 0,426. The found mean value, though slightly too small, 

 agrees pretty well with it. 



Fontanivent sur Clarens, March 1914. 



{To be concluded). 



