.Sfi7 



We should, however, bear in mind that the forinnlae discussed 

 hei'e refer to equilibria, whereas the last mentioned phenomenon is 

 a question of numher of nuclei and spontaneous crystallisdtion. 



I discussed this question already fully on an earlier occasion '), 

 so that 1 will only say a few words about it here. 



Suppose tUiit at a definite temperature and pressure, the situation 

 of the solubility isotherms uL and bL and that of the line for the 

 internal equilibrium in the liquid phase is as is indicated in tig. J ; 



I'ig. 1. 

 then we see immediately that tVom an supersaturate solution, in wiiich 

 A and B are in internal equilibrium, the stable modification ..J„ or 

 the metastable moditicatioii B„ can deposit. The liquid />^ is namely 

 the stable saturate solution coexisting with A^, L\ indicating tlie 

 metastable saturate .solution, which is in equilibrium with _6„. If 

 the solutions Lj and L\ lie under tiie point L, i. e. if L' „ and A„ 

 contain more of the pscudo-coniponont .1 than L, and if these points. 



1) Zcitsclir. f. phys. Ciiem. 84 (l'J13j. 



