COMPENDIUM OF SCIENCE. Compendium of seven or more scientific primers, covering arithmetic, cosmology (including on the armillary spheres), astronomy, horology (especially sundials) and physics, the first beginning ‘Communis Aritmetice Elementaris Theoria et Praxis Demonstrata’, manuscript in a single eccentric Italian hand, late 17th century. Figures on 12 leaves plus 47 further figures within the text, depicting planetary motion, sundials, the laws of physics etc. In Latin, 356 leaves, 197 x 130mm. Contemporary vellum boards, vellum ties (minor soiling to the binding, two ties lacking).