The sciopticon manual : explaining Marcy's new magic lantern, and light, including magic lantern optics, experiments, photographing and coloring slides, etc. (1874)
Marcy, L. J., author · Philadelphia : L.J. Marcy · leaf 180
170 SCIOPTICON MANUAL. EDGERTOX S SELF-CONDEXSIXG GAS CTLIXDERS. “ Special attention is asked to these cylinders, affording as they do a more easy and safe means of producing and condensing the gases for stereopticon purposes and gen¬ eral illumination. To the traveling exhibitor they fur- … Fig. 45. nish a compact means of transporting his gases, and save the labor and vexation of carrying weights, pres¬ sure-boards, etc.; while to the teacher they are invalu¬ able, placing at his command, at all times, a powerful light as readily started and as easily managed as that of a coal-oil…
Lantern projection · Slides (Photography)
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.