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The eyes of John Dalton / [Charles Snyder].

Charles Babbage and his rejected ophthalmoscope / [Charles Snyder].

Herman Jacob Knapp / [Charles Snyder].

The operation designated 'the extirpation of the eye' / [Charles Snyder].

Mr MacKenzie investigates green cataracts / [Charles Snyder].

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Snyder, Charles

Catalogue

The eyes of John Dalton / [Charles Snyder].

Charles Babbage and his rejected ophthalmoscope / [Charles Snyder].

Herman Jacob Knapp / [Charles Snyder].

The operation designated 'the extirpation of the eye' / [Charles Snyder].

Mr MacKenzie investigates green cataracts / [Charles Snyder].