ON THE TRANSIT-VELOCITY OF EARTHQUAKE WAVES. 



227 



Tab^-e VI. — Experiments F, on Soft Slate ; pressure 

 parallel to lamination. 



Soft 



LI 



!!!:'ii Slate. 



r-n 



Note. — The cube F lyas 0-693 inch on the side, and the necessary reductions have been 

 made in column 2 and subsequent ones. 



Table VII — Experiments G, on Soft Quartz ; pressure 

 transverse to lamination. 



Soft 



Quartz. 



Note. — The cube G was 0-694 inch on the side, and the necessary reductions have been 

 made in column 2 and subsequent ones. 



Table VIII Experiments H, on Soft Quartz ; pressure 



parallel to lamination. 



Soft 



11 



Quartz. 



Note. — The cube H was 0-695 inch on the side, and the necessary reductions hare been 

 made in column 2 and the subsequent ones. 



q2 



