| RefNo | PP/15/3/2 |
| Previous numbers | PP/47/3 |
| Level | Item |
| Title | Diagrams, compound wedge photometer by E J [Edmund Johnson] Spitta |
| Creator | Spitta; Edmund Johnson (1853-1921); British astronomer |
| Date | 1889 |
| Description | Three schematic diagrams, labelled figures 1-3, representing elements of Spitta's compound wedge photometer.
Subject: Scientific apparatus and instruments / Photometry
Prints of these diagrams were published in volume 47 of the Proceedings of the Royal Society alongside the paper 'A compound wedge photometer'. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink and graphite pencil on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1889.0061 |