RefNo | RBO/21/51 |
AltRefNo | RBO.21.285 |
Level | Item |
Title | 'A new method of improving and perfecting Catadioptrical Telescopes by forming the Speculums of Glass instead of Metal by Mr Caleb Smith' |
Date | 1739 |
Description | Read to the Royal Society on 5 April 1739 |
Language | English |
Extent | 14 sides |
Format | Manuscript |
Digital images | View item on Science in the Making |
AccessStatus | Open |