Fig. 3. 
da db 
asymptote on the right of «2,, viz. where Secs MRT ae The course 
in the double point = .2,, v =0 now follows again from (2), pro- 
vided it is borne in mind that now n>1. (See fig. 2). For comparison 
we reproduce the complete diagram for the ordinary case in fig. 3, 
which will not require any elucidation. Only the transition temperature 
d db 
between fig. 1 and 2, for which URI just at e= #, calls 
Xv v 
for discussion. To simplify the calculation we introduce as origin ot 
the coordinates the point «=—w2,, vO; in its neighbourhood we 
may put: 
da db db 
— = MRT — + MRT — Ce 
de da da 
and 
We Cia 
where 
da 
_ de’ db 
1 MRT de 
and 
db 
C,=— 
daz 
d. 
so that the equation for el becomes : 
wv 
= 3 1 
a ae == Ce 
v 14Cz 
