| RefNo | PP/17/18/2 |
| Previous numbers | PP/49/20 |
| Level | Item |
| Title | Photographs, octant actinometer by William Brennand |
| Creator | Brennand; William (fl 1890-1893); British chemist |
| Date | 1890 |
| Description | Two photographs of an octant actinometer used by Brennand in his photometric observations of the Sun and sky.
Subject: Optics / Photometry / Scientific apparatus and instruments
One photograph was published in volume 49 of the Proceedings of the Royal Society alongside the paper 'Photometric observations of the Sun and sky'. |
| Extent | 1p |
| Format | Photograph |
| PhysicalDescription | Gelatin silver photographic prints on cardboard |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1890.0091 |