Diagrams, spark board and measuring instrument by unknown artist

Description

Plate 30, figures 7-8 and 10 (labelled here as figure 9) showing a spark board and an outline and detailed plan of a measuring instrument used in Wheatstone's experiments in velocity of electricity. Inscribed with publication and plate details. Not signed. The manuscript for this paper is wanting.

Subject: Physics

Published in Philosophical Transactions as part of paper titled 'An account of some experiments to measure the velocity of electricity and the duration of electric light' by Charles Wheatstone.

Received and read to the Royal Society on 19 June 1834.

Reference number

PT/74/1/47

Earliest possible date

1834

Physical description

Ink, ink wash, and graphite on paper

Page extent

1 page

Format

Diagram