The Greenwich list of observatories : a world list of astronomical observatories, instruments and clocks, 1670-1850 / compiled by Derek Howse.

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The Greenwich list of observatories : a world list of astronomical observatories, instruments and clocks, 1670-1850 / compiled by Derek Howse.

Astronomical observatories -- History -- Directories.

Astronomical instruments

Astronomical clocks.

Howse, Derek.

World list of astronomical observatories, instruments and clocks, 1670-1850.