| Reference number | AP/14/2 |
| Level | File |
| Title | Unpublished paper, 'Description of an ellipse-plate, or instrument for describing ellipses' by W [William] Barnes |
| Date | [1830] |
| Description | Barnes describes his invention of an instrument to be used for drawing ellipses on paper. He explains the design and construction of the instrument as well as how to hold the instrument to operate it effectively. Includes two diagrams in the text. The covering letter for this paper is found at AP/14/1/1.
Subject: Mathematics / Scientific Instruments |
| Extent | 4p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related records in the catalogue | AP/14/1/1 |
| AP/14/2/1 |
| AP/14/2/2 |
| AP/14/2/3 |