| Year | 1941 |
| Date | 18-Sep |
| Volume | 85 |
| Issue | 2,106 |
| Page | 230 |
| Category | Optical |
| Part | |
| Title | The Construction of A Reflecting Telescope |
| Author | W.E.Moorhouse |
| Notes | The "Newtonian", the finished instrument - ready for use, curves of reflection, principle of the reflecting telescope, spherical mirror, construction, brass corner angles, elliptical mirror, barrel sides, front and back plates, mirror housing |