| RefNo | AP/64/9/2 |
| Level | Item |
| Title | Unpublished diagram, 'Focal curves for a system of two lenses at varying distances apart' by George James Burch |
| Date | 1886 |
| Description | A diagram, labelled diagram 1, showing a series of overlapping lines and cruves indicating the locus of centres, locus of vertices and perspective focal line.
Subject: Optics |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA1360 | Burch; George James (1852 - 1914); professor of physics | 1852 - 1914 |