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.
36/98 (page 30)
![[ 3° ] which fuch delineations might lead us, it ought again to change their portions, and reprefent them to us in their natural fituations. If we confider the foul as the mod adlive principle of human nature, we make it abfurd to. fuppofe her paffive in any one circumdance. The adtive powers of the foul can by no means argue a paffive principle as (he is the judge or mediatrix of all our perceptions; was (lie therefore to remain paffive. fuch i perceptions mud become imperfedl to the body. I have endeavor’d to ffiew by the third and fourth experiments, that the ac~ tive principle is limitted to a paffive variation of the objedl by the Keplerian fyflem. The way of reafoning eftabliffied by Kep¬ ler may then be fufpedled, yet the effedi: produced by it will ever be the fame, for we can fee objedts but one way, and that mud be in their natural pofitton. The firfl circumdance that naturally oc¬ curs to every obferver of the human eye](https://iiif.wellcomecollection.org/image/b30549127_0036.jp2/full/800%2C/0/default.jpg)
