582 

 XVII. 



Specific Surface-Energy 

 in Erg. pro cm-. 



éSöO- tVO" /50'' dCO° SÖ0°900° 950° /W0'/(i50°/m' //S0y2Ü0" /2joy3cV /350'/'/CCy'/^éy3cV'/J5c'" /^^^^ 



Fig. 4. 





