An introduction to the science & practice of photography
An 1888 London photography textbook by Chapman Jones, published by Iliffe & Son, written as an introduction for students and practitioners of the camera. The pictures are plain line diagrams of optics: rays converging on a point, an object imaged through a lens, a ray refracting through a sphere, and a lens cross-section. A designer could borrow their clean geometric construction for technical or scientific graphics.
