| RefNo | AP/34/9/2 | 
| Level | Item | 
| Title | Unpublished figure, 'Blue pellicle formed on the surface of a specimen of human urine' by Arthur Hill Hassall | 
| Creator | Hassall; Arthur Hill (1817-1894); British physician; chemist; microscopist | 
| Date | July 1852 | 
| Description | A figure in pencil and blue ink showing 'fragments and granules of indigo, crystals of triple phosphate, vibriones and animalcules' magnified to 420 diameters. 
 Subject: Biology / Microbiology
 | 
| Extent | 1p | 
| Format | Drawing | 
| PhysicalDescription | Ink and graphite pencil on paper | 
| AccessStatus | Open |