930 
(7) 
(ML) 
Fig. 3. 
(hat- we obtain a P,7-diagram, as is drawn in fig. 2. |The points 
a and 6 are the finishing points of the curves (B) and (A) and they 
are in accordance with the points a and ¢ of fig. 1; the finishing- 
point ¢ of curve (/) has not been drawn in fig. 2). 
It appears from fig. 2 that at the same temperature the vapour- 
tension of (A) — B + ice + L + G is larger than that of (B)= 
