Letters on natural magic, addressed to Sir Walter Scott, bart (1834)
Brewster, David, 1781-1868. n 84239125 · London : J. Murray · leaf 95
o remove the optical incongruity of the figures becoming more luminous when they retired from the observer, and more obscure when they approached to him. The variation of the distance of the lens D from the sliders in E F was not exactly adapted to the motion of the lantern to and from the screen,… … The magic lantern is mounted on a small car H, which runs on wheels W W. The direct light of the lamp G, and that reflected from the mirror M, is condensed by the illuminating lenses C C, upon the transparent figuers in the opaque sliders at E, F 2
Scientific recreations
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.