NEWTON, Isaac (1642-1727). Opticks; or A Treatise of the Reflections, Refractions, Inflections and Colours of Light. London: William Innys, 1730. 8° (195 x 111mm), 12 folding engraved plates (some spotting, title and A2 with short marginal tear, perforation stamp on title, small ink stamp to plate versos, A2 with ink stamp at foot, one plate with segment torn from margin). Modern half calf. Provenance: John Tomlinson (1737 inscription with price of 5/-) -- John Crerar Library (stamps). Fourth edition, 'carefully printed' from the third edition of 1721 and incorporating Newton's revisions to it. Babson 136.