| RefNo | AP/34/9/3 |
| Level | Item |
| Title | Unpublished figure, 'Blue colouring matter, most probably indigo, deposited in the thallus of penicilium glaucum' by Arthur Hill Hassall |
| Creator | Hassall; Arthur Hill (1817-1894); British physician; chemist; microscopist |
| Date | 20 May 1853 |
| Description | A figure in pencil and blue ink showing blue colouring matter in a web-like structure, magnified to 420 diameters.
Subject: Biology / Microbiology |
| Extent | 1p |
| Format | Drawing |
| PhysicalDescription | Ink and graphite pencil on paper |
| AccessStatus | Open |