Unpublished letter, 'An account of an electrical increaser' from Henry Upington to George Pearson

Description

Upington's paper consists of a letter to Pearson and extracts of letters from Upington to Earl Stanhope [Charles Mahon], all written as a single piece of prose. Upington describes his invention of an 'electrical increaser' used to manifest weak amounts of elecric fluid so that they might affect an electrometer. Includes one page of illustrations.

Subject: Physics

Written by Upington in Blair's Hill, Cork [Ireland]. Read to the Royal Society on 24 April 1817.

Whilst the Royal Society declined to publish this letter, it was published in full in the Philosophical Magazine and Journal in 1818: Upington, Henry. 'Account of an electrical increaser for the unerring manifestation of small portions of the electric fluid'. The Philosophical Magazine and Journal, vol 52, no 248, December 1818, pp. 47-52.

Reference number

AP/9/27

Earliest possible date

24 February 1817

Physical description

Ink on paper

Page extent

5 pages

Format

Manuscript

Published version available online at the Biodiversity Heritage Library

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