1870.] 



Coimbra Monthly Magnetic Determinations. 



187 



On On 



M OO ^ H 



NO NO NO NO ND NO 



vo vo no no no no 



HI C* W C* M c* 



H M O tl V^OO 



NO NO NO NO NO NO 



•H O 



cJ cooo oo >-< >-, 

 \o VO uo >-0 



^- 



C\C\ Cn C\ C\ C\ 

 CO CO CO CO CO CO 



O O O O O O 



^J- co cooo oo 

 v~> iooo oo oo oo 



Cn On Cn On ON On 

 co co co CO co co 



b b boob 



On Onoo OO 00 On 

 OO 00 NO v© OO 00 

 ^-"fr "<*■ 

 On O On On Cn On 

 CO CO CO CO CO CO 



O O O O O O 



5 a 



rf- oo 



>-l CO 

 M O 



SIX 



On On to t-~- cl NO 

 O « O OO c) On 



^ ^J- rj- co ri- co 

 oo oo oo oo oo oo 



On On On On On On 

 00 OO 00 OO 00 OO 



co ih m oo oo 



« rj- t^. OnnO 



co co r< c» c» d 

 oo oo oo oo oo oo 



On On ON ON On ON 



c» r}- t^- »-o r^. « 

 ■<4-no \o\o 



N d d d N N 



oo oo oo oo oo oo 

 On O- On On On On 



oooooooooooo oooooooooooo 



O On cl u-> 



co b "o\ i-i « r-~ 



<J-> tJ- CO CO rj- 



co O H O to O 



N O H « |o 



oo >om M\i K 



H H CO CO cl 



w O O On O On 



c* c» y> p t-. t^- 



NO vO r^. co co 

 rj- d M co t}- -< 



NO oo 



b 



NO NO 



On 



CO 

 NO 



On 

 NO 



O co O co O co O co O co O co O co O co O co 



- 



a, 



