PUiuSI. 



Goto' ny en Mam Time FoT't Rci C Maffiietic Obsenation.t 



These airres are 

 selected fer discussion. 



plotted from the means of Iwurh readings of iJie foUowuvg luidislurbed days 

 by nr Wild, vix:- AprU W^ «!*/7"?/^?Pr' 23^' and May 9</0f'l/fr?^m'''and IS' 



Afvdute 



40 -tC- - 



V Hocn 



40 30' 

 4V'Xl\ 

 40' W ~ 

 40" 0' - 



Vect I n at io 



'^1883. 



6 J 



in CeS Ciab 

 ■0J73 



VrrtJine.lfalf 

 rG.S.liua. 



■ems 



■6JS0 

 •6115 



Verti 



At»t>biie 

 40' 40 



40 30 

 40'20' 

 40' W 

 40' 0' 



June 4'!' 5"* II"' fjiut 15"*, and July ?l'.' ?-J'^ 23"^ Z8^29^ 1883. 



Wfirrr Settle 



ttcr.siimu 



cni 



■mes 

 ■tyiss 



Vert.FOt^Saik 

 CC.SVttiU 



eisc 



ens 

 ■eno 



Decli n-atio w 



II yoon 7 2 



D LlTM 2? BeOIOBO S' Covt-T GwiDtl. WJfcV/tf tl^ 



