| Reference number | PP/17/38/1 |
| Previous numbers | PP/49/42 |
| Level | Item |
| Title | Manuscript, 'Preliminary note - On the limit of visibility of the different rays of the spectrum' by William De Wiveleslie Abney |
| Date | 1891 |
| Description | Abney writes: 'In certain photometric experiments it became necessary to find the limit of visibility of the different parts of the spectrum, and also to ascertain what ratio this limit would bear to some fixed luminosity. It should be borne in mind that this question is totally different from acuteness of vision, which some have confounded with it. The two are independent one of the other, and can scarcely be compared.'
Annotations in pencil and ink. Includes one page of graphs of experimental observations.
Subject: Optics / Photometry / Ophthalmology
Received 29 April 1891. Read 14 May 1891.
A version of this paper was published in volume 49 of the Proceedings of the Royal Society as 'On the limit of visibility of the different rays of the spectrum. Preliminary note'. |
| Extent | 14p |
| Format | Manuscript |
| Physical description | Ink and graphite pencil on paper |
| Digital images | View item on Science in the Making |
| Access status | Open |
| Related material | DOI: 10.1098/rspl.1890.0121 |
Fellows associated with this archive
| Code | Name | Dates |
| NA6454 | Abney; Sir; William de Wiveleslie (1843 - 1920) | 1843 - 1920 |