| Year | 1956 |
| Date | 25-Oct |
| Volume | 115 |
| Issue | 2,892 |
| Page | 577 |
| Category | Optical |
| Part | |
| Title | A Precision-Built Microscope for the amateur |
| Author | G.Eades |
| Notes | Reducing secondaries, focusing control, raising and lowering, ensuring accuracy, scales, prisms, temperature effects, second test, see 226 4660 392 |