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Start Over Subjects Eyeglasses ✖Remove constraint Subjects: Eyeglasses Subjects Refractive Errors ✖Remove constraint Subjects: Refractive Errors Titles Defective vision, and the principles on which it may be corrected by optical means: read by appointment before the Medical Society of Virginia, at the annual session in Staunton, November 20th, 1872 ✖Remove constraint Titles: Defective vision, and the principles on which it may be corrected by optical means: read by appointment before the Medical Society of Virginia, at the annual session in Staunton, November 20th, 1872

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  • Defective vision, and the principles on which it may be corrected by optical means: read by appointment before the Medical Society of Virginia, at the annual session in Staunton, November 20th, 18721