The art of preserving the sight unimpaired to an extreme old age : and of re-establishing and strenthening it when it is become weak ... To which are added observations on the inconveinces ... of common spectacles / By an experienced ocultist [G.J. Beer].
- Beer, Georg Josef, 1763-1821
- Date:
- 1824
Licence: Public Domain Mark
Credit: The art of preserving the sight unimpaired to an extreme old age : and of re-establishing and strenthening it when it is become weak ... To which are added observations on the inconveinces ... of common spectacles / By an experienced ocultist [G.J. Beer]. Source: Wellcome Collection.
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