The figure of the earth, determined from observations made by order of the French King, at the Polar Circle / by Messrs. de Maupertuis, Camus, Clairaut, Le Monnier ... the Abbé Outhier ... and Mr. Celsius ... Translated from the French of M. de Maupertuis.

Licence: Public Domain Mark

Credit: The figure of the earth, determined from observations made by order of the French King, at the Polar Circle / by Messrs. de Maupertuis, Camus, Clairaut, Le Monnier ... the Abbé Outhier ... and Mr. Celsius ... Translated from the French of M. de Maupertuis. Source: Wellcome Collection.