Unpublished paper, 'On a voltaic standard of electromotive force' by [Josiah] Latimer Clark

Description

In the year 1861 a Committee was appointed by the British Association for the Advancement of Science to report on standards of electrical resistance, and subsequently on other standards of electrical measurements. Reports were presented in 1862, 1863, 1864, 1865, and 1867. They recommended the adoption of a system of electromagnetic units based on the metre and gramme, the relations of the units being such that the unit of electromotive force acting through the unit resistance should give the unit current, and that the unit current flowing for the unit time should give the unit quantity. Clark aims to suggest a voltaic standard of electromotive force.

Annotations in pencil throughout. Marked on front as 'Archives Nov/72'. Includes eight figures of equipment used in Clark's experiments, including an electrodynamometer and a potentiometer.

Subject: Physics / Electricity

Received 30 May 1872. Read 20 June 1872. Communicated by William Thomson.

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 20 of the Proceedings of the Royal Society as 'On a voltaic standard of electromotive force'.

Reference number

AP/54/4

Earliest possible date

1872

Physical description

Ink and graphite pencil on paper

Page extent

51 pages

Format

Drawing
Manuscript