| RefNo | PP/8/34 |
| Previous numbers | PP/40/42 |
| Level | File |
| Title | Paper, 'On some new elements in gadolinite and samarskite, detected spectroscopically' by William Crookes |
| Date | 1886 |
| Description | Crookes writes: 'The recent discovery by my distinguished friend M. de Boisbandran on the existence of a new element which he calls Dysprosium makes it unadvisable on my part, as a fellow investigator in spectroscopic research, to delay any longer the announcement of some of the results I have obtained during the fractionations of the samarskite and gadolinite earths. I will first take the earths which give absorption-spectra when their solutions are examined by transmitted light. These occur chiefly at the higher end, beginning with didymium and proceeding, through samarium, holmium, &c., to erbium, which is one of the least basic. The earths which give phosphorescent spectra chiefly occur at the lower end, but each group overlaps the other; for instance yttria occurs above erbia.'
Annotations in pencil and ink. Includes one diagram of spectra.
Subject: Spectroscopy / Mineralogy
Received 8 June 1886 / 9 June 1886. Read 10 June 1886.
A version of this paper was published in volume 40 of the Proceedings of the Royal Society as 'On some new elements in gadolinite and samarskite, detected spectroscopically'. |
| Extent | 4p |
| Format | Printed |
| Diagram |
| PhysicalDescription | Ink and coloured pencil on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rstl.1883.0027 |
| DOI: 10.1098/rspl.1886.0076 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8188 | Crookes; Sir; William (1832 - 1919); chemist | 1832 - 1919 |