Doubts concerning the inversion of objects on the retina / by Marmaduke Berdoe.
- Marmaduke Berdoe
- Date:
- 1772
Licence: Public Domain Mark
Credit: Doubts concerning the inversion of objects on the retina / by Marmaduke Berdoe. Source: Wellcome Collection.
47/98 (page 41)
![[ 4. ] thro* the aperture of the iris. We have imperfe£t vifion when we open a book and regard the fubjedfc of the whole page, and perfeQ; vifion is the explaining of it word by word. The celebrated Sthaal, attributing to every different part an aftive and fenfible faculty, fays that the foul directs every move¬ ment of the body. It mull appear almoft evident to the obfervation of every one, that the optic nerves feem to poffefs a radiant and primitive fenfibility intirely fuperior to the influence of the will, or elfe men would have been endued with a power of ordering the different diameters of each iris, and regulating their contra&ions and di- litations. But thefe fublime faculties of the foul are as infinitely fuperior to that privi¬ lege which nature has given to us, of di~ re£ling the different motions of our hands and feet, as the animating principle itfelf is fuperior to the body. And here I lhall F beg](https://iiif.wellcomecollection.org/image/b30549127_0047.jp2/full/800%2C/0/default.jpg)