Wonderful reproduction of hand colored engraved diagram of optics by John Emslie. This image features thirty-four color illustrations which refer to a range of scientific diagrams and to popular knowledge on the general topic of optics. Illustrations includes images of simple and complex lenses and their use in optical machines, the refraction and reflection of light, the color spectrum, and the anatomy of the human eye, as well as figures of a simple portable camera obscura and a magic…
