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Dissertatio inauguralis medica de cataracta omni tempore deponenda. Quam consensu gratiosae facultatis medicae sub praesidio viri illustris excellentissimi doctissimi D. Andreae Eliae Büchneri ... pro gradu doctoris legitime impetrando D.XXV.IVLII MDCCLIII publice / defendet auctor Georgius Henricus Troschel Berolinensis. Public Domain Mark. Source: Wellcome Collection.