A New Process of Making Trichromatic Lantern Slides

1904 Scientific American  
president of the Camera Club in this city, recently explained his new method of mak· ing tricolored slides in a simple way, which would cause the picture on the screen to appear in the colors of nature. He stated that it was an improvement over the process he employed in 1891, in which gelatine· coated celluloid films were used, each colored and then combined to form one slide.
doi:10.1038/scientificamerican10291904-295 fatcat:etdm6myleraifo7kthwsckokea