Opticks: or, a treatise of the reflections, refractions, inflections and colours of light. The fourth edition, corrected. By Sir Isaac Newton, Knt.

London : printed for William Innys at the West-End of St. Paul's, MDCCXXX. [1730]

[8],382,[2]p.,plates ; 80.

ESTC T69138

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.