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sented by a curve in a concentration diagram (e.g. a triangle), then 
its point of maximum temperature is situated in the proximity of 
its point of intersection with the line F’,F%. 
The same is true of course for the quaterny equilibrium 4= #, + 
+F,+ F,+L+G. When we represent the solutions of this 
equilibrium by a curve in a concentration-diagram (e.g. a tetrahedron) 
its point of maximum temperature is then situated in the proximity 
of its point of intersection with the region F’, F,F,. 
Leiden, Inorg. Chem. Lab. (To be continued). 
