| RefNo | PP/20/28/2 |
| Previous numbers | PP/52/29 |
| Level | Item |
| Title | Diagrams and photographs, experimental equipment and results by Frank Clowes |
| Creator | Clowes; Frank (d 1923); British chemist |
| Date | 1893 |
| Description | Three photographs, labelled figure 1, showing several views of Clowes' portable safety-lamp; nine ink diagrams, labelled figures 2-10, showing observations and results of Clowes' investigations into exact measurements of flame-cap indications.
Subject: Scientific apparatus and instruments
Prints of these diagrams and photographs were published in volume 52 of the Proceedings of the Royal Society alongside the paper 'A new portable miner's safety-lamp, with hydrogen attachment for delicate gas-testing; with exact measurements of flame-cap indications furnished by this and other testing lamps'. |
| Extent | 2p |
| Format | Diagram |
| Photograph |
| PhysicalDescription | Ink and graphite pencil on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1892.0092 |