1. The mydriatics in ophthalmology Author(s): Risley, Samuel D. (Samuel Doty), 1845-1920 author Publication: Philadelphia, Pa. : University of Pennsylvania Press, [1893?] Subject(s): Pupil -- drug effectsEye Diseases -- drug therapyAccommodation, Ocular -- drug effectsMydriatics
2. The relative importance of astigmatism in the production of asthenopia: second paper Author(s): Risley, Samuel D. (Samuel Doty), 1845-1920 author Publication: [St. Louis?] : [publisher not identified], [1893?] Subject(s): Astigmatism -- therapyAsthenopia -- etiology
