| RefNo | PT/74/7/9 |
| Level | Item |
| Title | Diagrams, speculum and polishing machine by unknown artist |
| Date | [1840] |
| Description | Plates 20-21, figures 1-9 showing a large speculum and a polishing machine used in Parsons' experiments using his reflecting telescope. Figures drawn separately and pasted onto backing sheet. An ink inscription verso reads 'Lord Oxmantown'. Not signed.
Subject: Scientific Instruments / Astronomy
Published in Philosophical Transactions as part of paper titled 'An account of experiments on the reflecting telescope' by William Parsons.
Received by the Royal Society on 9 May 1840. Read 18 June 1840. |
| Extent | 2p |
| Format | Diagram |
| PhysicalDescription | Ink and ink wash on card; mounted on paper |
| Dimensions | 363x223mm |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rstl.1840.0023 |
| DOI: 10.1098/rspl.1837.0125 |
| RelatedRecord | PT/24/3 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8084 | Parsons; William (1800 - 1867); 3rd Earl of Rosse; astronomer | 1800 - 1867 |