TABLES 354-356. MAGNETIC PROPERTIES OF IRON. 317 



TABLE 354. Magnetic Properties o! Iron and Steel. 



E. Gumlich, Zs. fur Electrochemie, 15, p. 599; 1909. 

 Brackett indicate annealing at 800 C in vacuum. Partntheses indicate hardening by quenching from cherry-red. 



TABLE 355. -Cast Iron in Intense Fields. 



B. O. Peirce, Proc. Am. Acad. 44, 1909. 

 TABLE 3 56. -Corrections for Ring Specimens. 



M. G. Lloyd, Bull. Bur. Standards, 5, p. 435. *9o8. 



SMITHSONIAN TABLES. 



