Paper, 'Some observations on the amount of luminous and non-luminous radiation emitted by a gas flame' by John Conroy

Description

Conroy writes: 'In 1863 Julius Thomsen communicated to the “Naturforscherversammlung” at Stockholm an account of some determinations he had made of “The Mechanical Equivalent of Light,” and an abstract of this paper appeared in "Poggendorff's Annalen" (vol. 125, 1865, p. 348). He allowed the radiation from a sperm candle, a moderator lamp, and a gas flame, to fall on the face of a thermopile, and noted the deflection of the needle of a galvanometer in the thermoelectric circuit, when the radiation fell directly on the pile, and when it did so after passing through 20 cm. of water contained in a glass cell.'

Annotations in pencil and ink throughout.

Subject: Chemistry

Received 11 November 1889. Read 19 December 1889. Communicated by Augustus George Vernon Harcourt.

A version of this paper was published in volume 47 of the Proceedings of the Royal Society as 'Some observations on the amount of luminous and non-luminous radiation emitted by a gas flame'.

Reference number

PP/15/7

Earliest possible date

1889

Physical description

Ink and graphite pencil on paper

Page extent

23 pages

Format

Typescript