(151) ; 
Variations de la déclinaison magnétique observées à Bruxelles, de B& 
en 5 minutes , et pendant 24 heures, à partir du 26 février 1841, 
à 10 heures du soir, temps moyen de Geættinque. 
HEURES. | 0’. | 5’. | 10°. | 15”.1 20°. | 25”. | 50’. | 35’. | 40’. | 45. | 50’. | 55. 
| 
10 h.s. |54,93156,13156,35156,53156,87|56,67156,57|56,32 
1 — 56,12156,31/56,45/56,44156,45/56,35]56,23/56,03 
Minuit . [56,13/56,06156,09/56,17156,19/56,38/56,5:156,59 
1h.m. |54,11/54,07154,48/54,96155,67|56,44157,29/57,75 
2 — À56,41/56,58/56,73/56,81156,88|56,99/57,08|57,14 
3 — |56,77/56,60/56,54156,54/56,34155,77155,08|54,59 
4 =, |54,97 55,13 |55,23 55,74155,99/55,49/55,38)55,22 
5 — |55,45/55,37155,24/55,15/55,21]55,1254,96/54,02 
6 — |54,73154,58/54,61/54,50|54,54/54,74|54,70|54,64 
7 
8 
9 
56,42[56,53|56,61[56,29 
56,19/56,52156,27/56,12 
56,23[55,43/54,93[54,53 
57,91/57,81/57,11/56,53 
57,23[57,21|57,16/56,93 
54,14/54,11/54,41154,77 
55,05/55,26/55,29/55,48 
54,95154,93154,93|54,87 
54,56/54,42/54,38/54,31 
55,30154,79/54,37/54,48 
54,43|54,33/54,33/54,23 
54,24154,18/54,10[54,11154,26/54,22/54,07|54,07154,14|54,38 
— |54,13153,94154,01154,14154,31/54,48 Æ 
54,25154,18/54,30/54,21/54,17154,15|54,30154,34154,33[54,86 
— 54,40 sa sl 
— |54,34/54,44 
10 — |54,25/54,20 
11 — |54,30/54,06|54,10/54,12/53,96/53,94/53,94/53,91 
Midi. . |53,93 53,96 |53,90/53,89|53,76/53,52]53,40|53,35 
hs. |53,31/53,29/53,23]53,26/53,19/53,u7|53,07]52,87 
2 — |52,42/52,30/52,45/52,45/52,52/52,61/52,55|52,53 
— |52,47/52,50152,70/52,77152,82/52,86152,97|53,06 
54,31/54,88/54,31|54,43154,49/54,45 
54,04/53,94153,81153,85 
53,45/53,39|53,39 
4152,58|52,56 
53,39 
52,78/52,5 
52,62[52,64152,72|52,59 
53,26152,28/53,41153,43 
— |53,44/53,20/53,25|53,32153,34153,34153,90/53,21|53,32/53,16|53,28|53,36 
54,81 
54,93 
54,82 
54,35 
54,57 
» 
54,80/55,08/54,72 
54,53[54,28|54,23 
55,33[55,68[55,69 
54,31/54,27|54,24 
54,62|54,65|54,66 
3 
4 
5 — À53,59/53,58|53,74153,98/54,28/54,56/54,82|54,99 
6 — }54,55154,61154,63/54,41154,23/54,23154,37/54,72 
7 — |54,28/54,59/54,47/54,40/54,56/55,13/55,28/54,85 
8 — 155,45/55,32/55,01/55,01/54,79]54,62]54,40)54,36 
9 — |54,33154,39/54,48/54,44154,42154,56154,56|54,54 
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