THE LINEAR FORCE OF GROWING CRYSTALS 333 



increase solubility and so to raise the concentration necessary for 

 potential supersaturation and growth upon the loaded crystals. 

 This degree of supersaturation is readily attainable through evapo- 

 ration or otherwise, and when attained the loads are lifted. With 

 this thesis established, there is no conflict between the observations 

 of Bruhns and Mecklenburg and our own, and all the experimental 

 evidence offered is perfectly correlated. 



Carnegie Institution of Washington 



Geophysical Laboratory 



February, 1916 



