| RefNo | PT/75/8/30 |
| Level | Item |
| Title | Graphs, variation in chemical diffused light and daily changes in chemical luminosity by unknown artist |
| Date | [1859] |
| Description | Plate 46, figures 11-12 showing two graphs. The first graph shows the hourly variation in chemical diffused light on equinox at numerous locations including Cairo [Egypt], Naples [Italy], Heidelberg [Germany], Manchester [England], Petersburg [St Petersburg, Russia], Reykjavik [Iceland], and Melville Island [Northwest Territories, Nunavut, Canada]. The second shows the daily changes of chemical luminosity in a sky with passing clouds. Inscribed with publication and plate details. Not signed. The manuscript for this paper is wanting.
Subject: Physics / Chemistry
Published in Philosophical Transactions as part of paper titled 'Photo-chemical researches.—Part IV' by Robert Wilhelm Bunsen and Henry Enfield Roscoe.
Received and read by the Royal Society on 26 May 1859. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on graph paper |
| Dimensions | 252x238mm |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rstl.1859.0035 |
| DOI: 10.1098/rspl.1859.0018 |
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 |