| RefNo | PT/68/6/2 |
| Level | Item |
| Title | Plate, photographic apparatus controlling light exposure by unknown artist |
| Date | [1862] |
| Description | Figures 1-4 from Plate IX showing an apparatus for exposing a photographic surface to light for specific amounts of time and an adaptation of the apparatus including a shade used in order to avoid moving the entire system into a dark room.
Subject: Chemistry
Published in Philosophical Transactions as 'Photo-chemical researches.—Part V. On the direct measurement of the chemical action of sunlight'.
Received by the Royal Society on 11 November 1862. Read 11 December 1862.
Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 12, 1863. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink and ink wash diagrams on paper |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1862.0069 |
| DOI: 10.1098/rstl.1863.0007 |
| RelatedRecord | RR/5/36 |
| RR/5/139 |
| PT/68/6 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8155 | Bunsen; Robert Wilhelm (1811 - 1899) | 1811 - 1899 |
| NA8277 | Roscoe; Sir; Henry Enfield (1833 - 1915); chemist and university administrator | 1833 - 1915 |