Paper, 'On the spectrum of thallium, and its relation to the homologous spectra of indium and gallium' by Henry Wilde

Description

Wilde: 'The spectral reactions of thallium have been made the subject of observation by so many distinguished physicists as to leave little to be gleaned by further research of the spectrum of this interesting element. A strong line in the red seems, however, to have been overlooked, with one exception, in all the tables of the spectrum of thallium which have hitherto been published. Huggins would appear to have observed this line in the spark spectrum, and assigned a place for it in his table corresponding to a wave-length of 6547 of Ångström’s scale.'

Annotations in pencil and ink. Includes one spectrum diagram.

Subject: Spectroscopy / Chemistry

Received 14 March 1893 / 20 March 1893. Read 20 April 1893.

A version of this paper was published in volume 53 of the Proceedings of the Royal Society as 'On the spectrum of thallium, and its relation to the homologous spectra of indium and gallium'.

Reference number

PP/21/9

Earliest possible date

1893

Physical description

Ink and graphite pencil on paper

Page extent

9 pages

Format

Manuscript
Diagram