652 



LOUIS VESSOT KING 



PLATE I 



zz longitudinal 

 pressure 

 thousand 

 lbs. per 

 sq. in. 



Granite 

 Diabase 



Slate 



Belgian Black Marble 



Dolomite 



Carrara Marble 



Sandstone 

 Alabaster 



- -J Steatite 



Lead 

 Tallow 



xx lateral 

 pressure 

 thousand lbs. 

 per sq. in. 



Relative Plasticities of Various Rock Specimens 

 Nickel-steel jackets of 0.25 cm. wall 



