Calculations (chiefly planetary), with drawings of Jupiter and its satellites; conversion tables for revolutions of a screw (338v-339r); lists of fixed stars (357v-358r, 363r); and notes about clocks (373v-377r). The writing is mainly in Flamsteed's hand, but features at least one other hand, probably that of Thomas Smith, whose name appears at fo. 330r. The papers are undated, but originate mainly from 1677-1678, with some earlier data.