This central bureau has existed since 1866. After the creation of the Prussian Geodetic Institute it was united with the latter in 1869. The object of the Geodetic Institute is to cultivate geodesy by scientific researches, to execute the astronomical and physical determinations which, joined with the geodetic determinations, may serve in the exploration of the surface of the earth, more particularly within Prussian territory.

The labors of the institute for the present bear more particularly upon the astronomical determinations of the vertical in longitude and latitude, as well as upon astronomical data upon as many points of the geodetic system as possible; moreover, upon the determination of zenithal distances for convenient points, also upon the determination of the density and force of gravitation; it devotes its attention, furthermore, to researches upon the mean level and variations in the sea-level; to the examining into the refraction of luminous rays by the atmosphere; finally, it is occupied with all theoretical and experimental researches which contribute to the examination of the surface and the geodesy of the country.

The Geodetic Institute is placed under the immediate supervision of the Minister of Ecclesiastical Affairs, Public Instruction, and Medical Affairs of Prussia.

The Academy of Sciences is the consulting organ of the Minister in all the important affairs of the Institute. Conformably to the conventions agreed upon between the contracting parties, the Institute performs the functions of a Central Bureau for international geodesy. The director of the bureau is at the same time director of the Institute. - Almanach de Gotha.