400 Messrs. Cross and Williams on the Strength of the 



Table VIII. 

 Core, Norway Iron. — Diaphragm, Sheet Iron, No. 23. 



Strength of 



Induced 



Strength of 



Induced 



field. 



current. 



field. 



current. 





!•? 



•272 



1093 



•026 



10^0 



•289 



11 3-8 



■068 



26^8 



•310 



1193 



■086 



330 



•339 



118-6 



•096 



39^0 



■382 



1141 



•116 



47^0 



■420 



102-9 



■139 



56-3 



•458 



82^2 



■162 



65 8 



■490 



68-7 



•176 



72^3 



■529 



57-6 



■194 



78-3 



■582 



480 



•216 



86^4 



■652 



S9-9 



•229 



90 



■751 



30-8 



•242 



96^3 



■904 



23-7 



•255 



101-8 



roll 



190 



Table IX. 

 Core, Norway Iron. — Diaphran-ni, Steel, No. 2Q, Uiitcmporei 



Strength of 



Induced 



Strength of 



Induced 



field. 



current. 



field. 



current. 



■004 



7^7 



•281 



6(V7 



•019 



11-5 



-313 



63-8 



•054 



20-5 



•312 



60 4 



•095 



322 



•380 



56-3 



■105 



34-5 



1 '422 



50-5 



•128 



42^0 



•483 



44-7 



•153 



48-3 



■530 



39-0 



■178 



55-7 



•584 



35-3 



•200 



60-3 



•652 



320 



•227 



64-3 



•810 



28-2 



•236 



67-0 



1043 



24-3 



Table X. 

 Core, Norway Iron. — Diaphragm, Steel, No. 26, Tempered. 



Strength of 



Induced 



Strength of 



Induced 



field. 



current. 



field. 



current. 



•002 



7-8 



•344 



36-3 



•019 



10^4 



•400 



32-0 



■068 



18^5 



•466 



26-9 



•096 



23-8 



•545 



21-7 



•128 



303 



•642 



17^7 



•151 



32-4 



■662 



17-3 



•180 



37-0 



■732 



15-2 



•214 



40-2 



■816 



13-8 



•246 



400 



•8.54 



13-0 



•272 



39-6 



1025 



10-0 



•304 



37-9 







