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Optical Criteria of Urological Endoscopes

Exactly a year ago Mr David Wallace (1973) gave as his Presidential address a superb exposition of the development of endoscopes from Bozzini's lichtleiter, designed in 1806, to the present day. Not only did he show us a picture of this historic instrument, but his eagle eye had spotted a genuine piece amongst some discarded antique relics at the College of Surgeons of Chicago. The instrument has been restored to its pristine state by David Wallace and is exhibited in their