Unpublished paper, 'On attractions apparently magnetic exhibited during chemical combinations' by Wm J [William Jory] Henwood

Description

Henwood describes experiments on magnetic attraction caused by chemical combinations, including the combination of quicklime [calcium oxide] and water, quicklime and sulphuric acid, and sulphuric acid and carbonate of soda and sodium chloride. Henwood also experiments with magnetic needles made from various metals.

An ink inscription top right of first page reads 'Comm'd Nov 16' and next to this, struck out, '(not to be read)'. Annotations appear throughout in graphite.

Subject: Chemistry / Physics

Written by Henwood in Perran near Truro [Cornwall, England]. Communicated by D [Davies] Gilbert [although this line has been struck out]. Read to the Royal Society on 22 February 1827 and ordered not to be printed on 22 March 1827.

Reference number

AP/13/10

Earliest possible date

11 November 1826

Physical description

Ink on paper

Page extent

4 pages

Format

Manuscript