MAGNETIC SHIELDING IN HOLLOW IRON CYLINDERS. 



673 



Table VII. — Superposed Magnetic Inductions, LC and LOG Conditions. Shield B. 







He 



superpo.- 



ed. 







H c 



repeatedly reversed. 









13 



H f 



BG 



BG 



Total. 



B 



1,130 



BG 



Total. 

 2-5 



B 



980 



1-6 







2-9 





- 5-9 



+ 5-7 



— 5 



+ 5-2 -5 



X 





3-3 







10-3 





4,030 



-20-8 



+ 21-0 



-20-8 



+ 20-8 



10*4 



4,070 



bo 



CO 



a! 



7-1 







21-2 





8,300 



-42-2 



+ 42-0 



- 42 2 



+ 42-0 



21-1 



8,240 



CC 



□ 



9-8 







247 





9,650 



- 49 -8 



+ 49-7 



-50-0 



+ 50-0 



25-0 



9,760 



m 



xa 



d 





12 7 

 1-4 







1-7 



28-0 





10,950 



-56-2 



+ 55-0 



-55-5 



+ 55-0 



27-5 



10,730 



"2 



1-9 



900 



•4 







1 







2-4 



1,130 



o 



M 



3-3 



1-7 



1-0 



27 



1,270 















2-7 



1,270 



CO 



CO 



7"2 



1-7 



1-1 



2-8 



1,320 



*/ 













3-5 



1,650 



II 





9-9 



1-7 



•8 



2-5 



1,180 



•2 













27 



1,270 



K 



pa 



12-9 



1-7 



•9 



2-6 



1,230 







•1 











2-7 

 2-2 



1,270 



860 ; 



13 



1-7 







3-7 





1.250 



- 5-9 



+ 5-0 



- 4-8 



+ 4-7 - 4-6 + 4-3 





3 



3-3 







10-4 





4,070 



-19-9 



+ 19-0 



-18-5 



+ 18-8 -18-4 +18-4 



9-2 



3,600 1 





CO 



7-1 







20-2 





7,900 



-40-6 



+ 40-6 



-40-0 



+ 40-0 -39-9 +40-0 



20-0 



7,820 



m 



s 



9-9 







24-2 





9,450 



-48-8 



? 



I 



+ 483 -48-5 



24'2 



9,450 ■ 



d 

 d 



pa" 



12-9 







8-8 



27-4 





10,700 



- 55'5 



+ 54-5 



? 



+ 54-8 -54-4 



27 "3 



10,660 '. 



r-' 



1-7 



■6 



9-4 



4,440 



•3 



(i 







9-7 



4,580 



5 



3-3 



8-8 



"7 



9-5 



4,480 



•5 











10'0 



4,720 



W 



CO 



CS 



7-2 



8-8 



•8 



9-6 



4,530 



•6 











10-2 



4,800 







10-3 



8-8 



'3 



9-1 



4,300 



'7 



•1 









9-9 



4,670 





pa 



13-3 



8-8 







8-8 



4,150 



1-1 



-1 



(i 







8-9 

 1-1 



4,200 

 430 



13° 



1-3 







2-2 





860 



- 3-5 



+ 3-0 



- 2-2 



+ 2-1 





5 



2-6 







6-2 





2,420 



-11-2 



+ 10-0 



-io-o 



+ 97 -9*8 



4-9 



1,920 



* 



CO 



5-6 







15-8 





6,180 



-30-8 



+ 301 



-30-9 



+ 30-1 



15-0 



5,860 



<u 



e 



7-8 







20-3 





7,940 



-40-0 



+ 39-3 



-39-0 



+ 39 



19-5 



7,620 



W 



d 



pa 



10-4 







23-8 





9,300 



-46-6 



+ 46-6 



-46-5 



+ 46-5 



23-2 

 17-0 



9,060 

 8,020 



13 



1-7 



16-5 



■2 



167 



7,900 



•3 















3 



3-3 



16-5 



•5 



17-0 



8,020 



•7 













177 



8,350 





ee 



7-2 



16-5 







165 



7,800 



"7 













17-2 



8,100 



II 



s 



io-o 



16-5 







16-5 



7,800 



•2 













167 



7,800 



PQ 



13-0 



16-5 



•8 



15-7 



7,400 

















15-7 



7,400 



a 



-3 



1-0 







1-1 





430 



- 2-0 



+ 1-7 



- 1-7 



+ 1-7 



•85 



330 



y. 





3-3 







6-2 





2,420 



-12-0 



+ 11-2 



-10-7 



+ 10-9 



5-4 



2,110 



bo 



0) 



til 



5'8 







12-5 





4,900 



-24-8 



+ 24-0 



-23-9 



+ 23-8 



11-9 



4,650 



s 



8-5 







17-5 





6,830 



-34-4 



+ 34-0 



-33-9 



+ 33-8 



16-9 



6,600 



no 



CO 



d 

 d 



CO 



pa 



io-o 







20-1 





7,850 



-39-7 



+ 34-8 



-38-8 



+ 387 



19-4 



28 



7,580 



13 



CD 



1-3 



28 







28 



13,200 

















13,200 



3 



2-6 



28 



•20 



28-2 



13,300 

















28-2 



13,300 



o> 



OS 



5 7 



28 



•2 



28-2 



13,300 



•6 













28-8 



13,600 



II 



g 



7-8 



28 



- "2 



27-8 



13,100 



1-0 



- 9 



- 2 





28-1 



| 13,250 



a 



pa 



10-3 



28 



-•8 



27-2 



12,800 



1-2 



-1-2 











27"2 



12 800 



