Observations on the nature and theory of vision: with an inquiry into the cause of the single appearance of objects seen by both eyes. By John Crisp, F. R. S.

London : printed for J. Sewell, NO. 32, Cornhill, M.DCC.XCVI. [1796]

xvi,178,[2]p.,plate ; 80.

ESTC T131459

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