Light, an elementary text-book, theoretical and practical
An elementary optics textbook by physicist Richard Glazebrook, published by Cambridge University Press in 1912 for students and teachers of physics. The illustrations are line diagrams printed as figures within the text: a sectioned eye receiving parallel rays, ruled ray bundles converging on labelled points, and lettered circles with a marked centre, offering ready-made ray traces, lettered geometric constructions and hairline parallel rulings.
