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Variations de la déclinaison magnétique observées à Bruxelles, de 5. 
en 5 minutes, et pendant 24 heures, à partir du 23 juin 1841, à 
10 heures du soir , temps moyen de Geættinque. 
5’.2] 10’. 15". | 20/.1.95":1 60/1155". |40.045% 150": | 55! 
HEURES. 
10 h.s. 56,15 
tite 55,91/55,84/55,90/55,88 55,54155,42154,85 |54,56|54,48/54,28 
Minuil . 54,42/54,44/54,58/54,51 54,35154,48154,75|55,13/55,39/55,44 
1h: m, 55,78/55,91/56,00/55,96 |5 56,12/56,05 156,20 |56,23/56,35|56,26 
55,84155,59[55,35 |55,47155,70|55,80 155,70 /55,47155,54|55,63 
pe 56,33/56,36|56,38/56,37 |56,25/56,15|55,07 |55,84/55,71155,66|55,64 
3 — À55,82/55,90/56,20/56,39/56,40 56,33/56,33|56,08156,15|56,10/55,84 
4 — À55,59/55,60/55,82/55,94155,78 55,38[55,47 155,65 [55,61155,40/55,29 
FAIT 55,33155,77[55,81155,63 55,92/56,20/56,21/56,12| » [55,70 
ee: 55,64155,86|55,73|56,07 56,06/56,08/56,16156,23156,50|55,59 
Ai — 56,31/56,47[56,68/56,71 57,15/57,04 156,95 |57,02|57,04|56,97 
TUE 56,51156,26/56,03/55,88156,22|56,41/56,30/56,44156,38/56,46|56,59 
“hyes 56,79/56,75[56,64[56,56|56,48/56,38156,41 156,35 156,37|56,31156,26 
10% 56,19/56,20|56,16/56,07 55,80/55,66 [55,46 |55,37/55,35]55,09 
11 — 54,84/54,76/54,80/55,09/55,06 54,65/54,78/54,92/54,84/54,84154,74 
Midi. . |: 54,48/"4,37|54,34/54,22 54,07153,98 |53,90|53,72/53,77|53,84 
dS 54,00/53,98[54,01/54,00 53,91/53,84!53,88/53,96/53,90/53,81 
she, 53,71/53,66[53,52|53,38 53,50/53,52/53,52/53,50|53,44/53,36! 
3 — À53,44/53,48/53,42/53,37/53,47 53,55[58.55 |53,62|53,67|53,57 Re | 
a — À53,81/52,86/53.92/54,05|54,07 54,18/54,32|54,41 [54,50/54,59/54,61 
5 — 5468/54,51/54,57/54,48/54,68 54,66/54,75 54,91 [54,90/54,91/54,88 
6 — À54,97/55,06155,06155,18/55,23 |55,21/55,16 sont ss 55,17/55,18/55,29 
7 — À55,27155,45/155,42/55,52/55,55 55,40/55,55155,64[55,55/55,52|55,53 
PT : 55,59/55,53155,56155,55 |55,69|55,82 8500 55,70/55,71/55,78; 
— 55,60/55,53155,61155,69/55,73|55,75155,66/55,62 155,60 |55,56155,60|55.621lk 
10 — 55,63] » » » » » » » » » » » | 
