British Association, Q5th Beport, Manchester, 1915.] 



[Plate IX. 



Specimen A. Specimen B. 



Fig. 5. 



A. — ^Fractured after 672,000 cycles. Eange of stress 23"7 tons per square 

 inch combinecl with steady tension of 9"87 tons per square inch. 



B. — ^Extended immediately with the same stress of steady tension when 

 range of stress reached 29'0 tons per square inch. 



Illustrating Beport on Stress Distributions in Engineering Materials. 



[To/acep. 16D 



