

Roy. Soc. Edin. 



Vol. XL 



agnetic Shielding in Hollow Iron Cylinders. plate 2. 



II 



X 





X 



v\ 





<0 



3j 



ft 1 



" v ^ 





•s 



•v> 



£ 



**? 



<h 



OJ 



Q 





<Q 



&0 



2.0 



r 1 g .v. 



Fall lines = 3. 

 ?o Dotted Jo = ((g)). 

 D&sfi Jo = (p). 

 See table in. 





ri cr.vr. 



/W/ lines = p'. 

 Z/zsk lines = (pj. 

 -£><? <? t& h le v . 



IOO 



30 



f// 



50 



tf. 



3. 



I 5". O o o 



/ / 



/(hL. 

 J /fa* 



IOO 0. 





f t 



I oo 

 flG.IX. 



Skie Id B. 

 -o e e 1& bl e vi 



SO loo 



FI6.X. 



Shield B, dotted Jo. 

 o<?e table v 



VIII 



