| Year | 1936 |
| Date | 10-Dec |
| Volume | 75 |
| Issue | 1,857 |
| Page | 562 |
| Category | Optical |
| Part | |
| Title | Simple Optical Projectors |
| Author | "Kinemette" |
| Notes | Episcopic Projectors. The "Physioscope", plan view of Aphengescope, reversal of image, position of mirror, illumination, efficiency in episcopic projectors, direction of illumination, nature of subject, the objective, the camera obscura, position of subject, the epidiascope |