368 
plete miscibility in the pseudo system comes in contact with one of 
the melting-point lines, we may distinguish different cases. In his 
Thesis for the Doctorate Scnorvers gives the following figure 7, 
adding that when on loss of heat the phase x has been entirely 
converted to y, the ordinary phenomena will occur at lower tempe- 
ratures. 
By ordinary phenomena Scnorvers understands the deposition of 
one of the two components in pure state. The theory of allotropy, 
however, says that from the liquid which is in internal equilibrium, 
a solid substance will deposit, which is also in internal equilibrium, 
so that this solid phase will contain the two pseudo-components. If 
we express this in a drawing, we may get among others fig. 8, 
which is at once clear without any further elucidation. It is, however, 
necessary to point out that it is also possible that the line for the 
internal liquid equilibrium Z,LL’L" does not intersect the stable 
part of the melting-point line of the pseudo-component B, but that 
of the pseudo-component A. Besides it is possible that coming from 
higher temperatures the line for the internal liquid equilibrium does 
not meet the region of incomplete miscibility for the first time on 
Fig. 9. 
