Analysis of Ayscough's Telescope Adapted to Use at Sea

An unambiguous accordance between an objective lens for Ayscough’s telescope ‘Adapted to Use at Sea’ and another compound lens which was described by William Eastland in well-known Quere during the trial in October of 1765 was revealed. Preliminary analysis of small fragments of Quere from Eastland’, Stedman’ and Champneys’ testimonies was carried.