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.

    16/98 page 12
    drafted that we walk upright, and from this firft rule he has given us the idea of the true fituation of other bodies. To thefe remarks M. le Cat fubjoins fome qthers, fuch as the probability of a man being born blind, and afterwards couched and reftored to light, having obferved this inverfion of the objefts. He is of opinion that the foul does really fee objefts inverted, and he fays he caught her once in the very faft. M. de Buffon calls the fight a kind of touch, tho* elfentially different from the common touch. For, fays our learned phi- ■ ir i lofopher, if we touch any body with our hands or body, we judge by contaft; but we may touch with our eyes at whatever diftance the objeft is placed, provided only it is capable of refleftinga fufficient quantity of light to make an impreffion on the eye, and be contained within the angle of one minute. ' He imagines the inverfion to be owing to a defeft in the formation of the
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