Doubts concerning the inversion of objects on the retina / by Marmaduke Berdoe.

  • Marmaduke Berdoe
Date:
1772
Catalogue details

Licence: Public Domain Mark

Credit: Doubts concerning the inversion of objects on the retina / by Marmaduke Berdoe. Source: Wellcome Collection.

    37/98 (page 31)
    ti C 3> ] is, that the exadf reprefentations of all objedts are naturally and exadlly painted on the conjundlive membrane of the eye* The pofition of thefe objects will be found to agree invariably with the judgment of the foul. We are next led to conlider, that the eye, according to the Keplerian fyflem^ mu ft receive two di Hindi and oppofed fenfa- tions. The fbft that natural and exadl re- femblatice of the dbjedi which is delineated on the extreme fenfible membrane cover¬ ing the cornea of the eye, and call’d by anatomifts the conjun&ive. The fecond the fuppofed inverted icon of the objedi painting itfelf on the retina, and which the \ fedlators of Kepler look upon as abfolutely neceffary to vifion. The eye thus receiving two diflindl fersfations, offers the following queftion to our obfervation. Does the fu^ perior influence which the foul has over the corporeal fubflance, lead her to judge of natural objedts by the impreffion which is made on the exterior or interior part of the eye ?