| RefNo | AP/34/10/20 |
| Level | Item |
| Title | Unpublished figure, rotated neutral axes of the selenite by William Bird Herapath |
| Creator | Herapath; William Bird (1820-1868); English surgeon; chemist |
| Date | 19 January 1854 |
| Description | A figure in coloured ink, labelled figure 33, in which 'the neutral axes of the selenite have been rotated 15 degrees, so as to be removed from the position of maximum polarisation of [...] crystals'.
Subject: Chemistry / Optics |
| Extent | 1p |
| Format | Drawing |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA7695 | Herapath; William Bird (1820 - 1868); surgeon | 1820 - 1868 |