The Sciopticon manual : explaining lantern projections in general, and the Sciopticon apparatus in particular, including magic lantern attachments, experiments, novelties, colored and photo-transparencies, mechanical movements, etc. (1877)
Marcy, L. J. (Lorenzo J.) · Philadelphia : J.A. Moore · leaf 199
ce of light should be drawn farther from the condensing Icnses- A very interesting addition to the microscope consists of a diagonal mirror, whereby the image of the objects, instead of being projected directly on an opaque screen, may be thrown down at right angles on a sheet of paper placed on a… … Fig. S3. for showing the circulation of the blood in a tadpole's tail, of the sap in plants, &c. Its price, without the bottles, is $5.00. A tank filled with a solution of alum is sometimes used to absorb much of the heat of a beam of light before it falls upon a delicate microscopic object.
Lantern projection · Slides (Photography)
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
