Lectures on the errors of refraction

Historical Significance: This book publishes lectures on anatomy, refractive errors, retinoscopy and Javal's ophthalometer. Francis Valk MD (1845-1919) was Professor of Diseases of the Eye, New York Post-Graduate School and Hospital; Consulting Ophthalmologist, Thrall Hospital; and formerly Assistant Surgeon, Manhattan Eye and Ear Hospital ; Visiting Ophthalmologist Randall's Island Hospitals, and Ophthalmologist to the New York Dispensary. Fellow of the New York Academy of Medicine and of the State and County Medical Society. Member of the Greater New York Medical Society and the Society of Medical Juriprudence, etc.