| RefNo | PP/17/25/2 |
| Previous numbers | PP/49/27 |
| Level | Item |
| Title | Unpublished photograph, spectrum by George Higgs |
| Creator | Higgs; George (fl 1891-1893) |
| Date | 1891 |
| Description | A photograph of a spectrum to accompany Higgs' paper 'On the bisulphite compounds of alizarin-blue and coerulin as sensitisers for rays of low refrangibility'. The caption reads 'Great A head and portion of fluting or "tail" illustrative of paper on bisulphite compounds of alizarin blue and coerulin'.
Subject: Physics / Spectroscopy |
| Extent | 1p |
| Format | Photograph |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1890.0101 |