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Royal Observatory of Belgium
(1126)
Observatoire royal de Belgique
(539)
City of Brussels
(113)
Royal Academie of Science, Letters and Fine arts of Belgium
(7)
Royal Institute of Meteorology
(3)
Scientific instruments
(472)
Staff
(300)
Accounting (Invoices, Accounts, ...)
(228)
Building Observatory (construction & maintenance)
(198)
Meteorology
(122)
City of Brussels
(119)
About publications
(105)
Budget
(92)
General Administration (reports, regulations & inventories)
(92)
External publications
(90)
Foreign observatories
(78)
Dutch government (1815-1830)
(74)
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Tags
Scientific instruments
(472)
Staff
(300)
Accounting (Invoices, Accounts, ...)
(228)
Building Observatory (construction & maintenance)
(198)
Meteorology
(122)
City of Brussels
(119)
About publications
(105)
Budget
(92)
General Administration (reports, regulations & inventories)
(92)
External publications
(90)
Foreign observatories
(78)
Dutch government (1815-1830)
(74)
Meridian & time keeping
(69)
Study trips
(62)
Astronomy
(61)
Education
(60)
Royal Academy
(55)
Cartography (+ topography & Geodesy)
(52)
Museum of Brussels (i. e. physics cabinet)
(41)
Personal life, family & friends
(38)
Foreign scientists and learned Societies
(36)
Statistics (+ BMI)
(31)
Justice & law (+ insurance)
(29)
Dépôt de la Guerre (Topographical Dépôt)
(28)
Telegraphy
(26)
Physics of the globe
(25)
Publications of the Observatory
(23)
External performances (Commissions, committees, ...)
(21)
Belgian Navy
(21)
Homeland observatories
(20)
Library of the Observatory
(18)
High school of Brussels
(18)
Weights and Measures
(17)
Phenology (periodical phenomena : weather and nature)
(14)
Railways
(14)
Illustrations
(14)
Telescopes
(14)
Medicine
(11)
Belgian revolution
(9)
Museum of Industry
(9)
Mathematics
(7)
Military school
(7)
Miscellaneous
(7)
Royal Library
(5)
Demography
(5)
Town planning
(4)
Botanical garden Brussels
(3)
Public constructions works
(3)
Learned Societies in Belgium
(2)
Belgian government
(2)
To correct
(2)
Industry
(1)
Biographies
(1)
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