LT3r 
% ke) do 456 
Bk 
ore ett 
eo ee 
ARE a 
EE nà 
LAARNE: 
Meente plath Tepe 
Fig: 1: 
50 wo os 
§ 3. Virialcoefjicients. 
By means of the above results some of the coefficients in the 
empirical equation of state 
pra = Ag+ Bada + Cada’ + Dada*+ Eadat+ Pada? *) 
could be computed. These calculations only embrace the coefficients 
Ba, Ca, Da and in one case Hy; for the densities which were 
reached are not so high as would be necessary for the deduction 
of #4 and in most cases of 4 also; these were therefore found 
from the reduced equation of state VII. A.37) or VIL1.®, in which 
the coefficients © and & are identical. In some of the calculations, 
1) H. KAMERLINGH ONNES, Comm. NO. 71; these Proc. IV p. 125. 
*) H. KAMERLINGH ONNES and C. A. CromMELIN, Comm. NO. 128; these 
Proc. XV (1) p. 273. 
5) Suppl. N° 19. 
Proceedings Royal Acad. Amsterdam. Vol. XXII. 
