Astronomy: Thomas Phelps (left) and John Bartlett making astronomical observations in the observatory of the Earl of Macclesfield, Oxfordshire. Mezzotint by J. Watson, 1778.

Date:
1778
Reference:
46328i

Licence: Public Domain Mark

Credit: Astronomy: Thomas Phelps (left) and John Bartlett making astronomical observations in the observatory of the Earl of Macclesfield, Oxfordshire. Mezzotint by J. Watson, 1778. Wellcome Collection. Source: Wellcome Collection.

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