Diseases of the eye
A late nineteenth-century medical textbook on eye disease by ophthalmologist Edward Nettleship, published in Philadelphia in 1900 for physicians and students. Its pictures are plain line and halftone diagrams: a pair of eyes viewed from the front with a cross-section of the lens, dark silhouettes with holes showing vision defects, and small ringed circles marking eye conditions. A designer could take their clean, schematic diagram style for scientific or anatomical graphics, with strong black-and-white contrast.
