﻿Fig. 3.— 



P6000 



A_ g eC 

 torsion oi 



», Vol. 12, PI. VIII. 



24-000 











22000 











20000 





















J6000 



1 









14000 



,5 







x of elastic limit of 

 bined stresses. 





! 

























10000 

















4 



8000 













5C 



3 





r 













» 





