979 
N : b 
ordinates will contract and approach to zero as — becomes larger 
J lim 
in a region, however, which is hardly accessible to experiment. 
Another remark. 
From the circumstance that the ——- - surfaces may be considered 
y 5 
Bian 
to coincide, especially for large value of r, it should, however, not 
be concluded that the border lines coincide. The top differs already. 
: yv 
The top lies at zr, m,and v equal to 1, and so — —— differs; and 
q 
Dlim 
great differences are even derived for the gas-branch at low tempe- 
h : ’ { 1— 
ratures from the relation which holds approximatively, — / P ah dt 
Pk m 
Thus we find in the region where the law of the rarefied gases 
would hold: 
VA 
8 Diem ( by ) l—m 
=| 1+ : . 
Aden 
3 Y 
lim m 
Hence in a region where correspondence would pertectly prevail 
the border lines differ exceedingly much. This is of course the con- 
eee by 
sequence of the liquid volumes no longer corresponding when — 
lim 
differs, and the construction of the border line also requires the 
v 
knowledge of these volumes. Where the gas-laws hold, ae or 
NV vk 
eet 1, and now we have come to the conclusion that 
m RT 
RT 8 bate 
E for the different substances is equal to — Wa ’ Then 
Pk Vk 3 blim 
av 8 [3 
m ik. bim 
or a p te) 8 
m by are 
Dlim 
A confirmation of the thesis, that the #, m, —— — surfaces 
coincide for great value of_». 
