Traité d'optique : considérée dans ses rapports avec l'examen de l'oeil
A French treatise on optics applied to examination of the eye, written by Gustave Sous and published in Paris by Doin in 1879 for medical students and ophthalmologists. Its plates are ray diagrams: lenses in section, converging and diverging pencils, labelled axes and focal points, some reversed as white lines on solid black grounds.
