Directions for using the new improved Hadley's quadrant : with the new method of adjusting the glasses for the back observation. ... Made by P. and J. Dollond, ... in St. Paul's Church Yard, London.
| Author/creator | P. and J. Dollond |
| Format | Electronic |
| Publication Info | [London], [1772?] |
| Description | 56 pages, 2 plates ; 8⁰. |
| Supplemental Content | Full text online |
| General note | Includes: 'Directions for using the Hadley's sextant to determine the longitude at sea'. |
| General note | Leaf B8, pp. 30-31, is blank. |
| General note | With a half-title. |
| General note | Reproduction of original from the British Library. |
| References | English Short Title Catalog, ESTCT125207. |
| Reproduction note | Joyner- Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements |