Directions for making the best composition for the metals of reflecting telescopes
| Publication Date | 1787 |
|---|---|
| Remainder | and the method of casting, grinding, polishing, and giving them the true parabolic figure. By the Rev'd John Edwards, B.A |
| Extent | 48p. |
| Location | London] |
| Publisher | Published by order of the Commissioners of Longitude |
Author(s)
Wed Nov 29 15:11:18 CST 2023