|Title||Unpublished manuscript, 'Description of a quadrant for measuring horizontal angles by reflection' by W [William] Barnes|
|Description||Barnes describes the construction of his quadrant used to measure horizontal angles. The quadrant consists of a frame, an arch, a nonius, an index glass, an object glass, and a light vane.|
Peter Mark Roget's initials appear next to the date received. Below this, an ink inscription reads 'Not to be read' and below this, 'Not fit for the R. S. H.K. [Henry Kater]'. Underneath this is a copy of Kater's comment, with John George Children's initials.
Subject: Scientific Instruments
Received by the Royal Society on 7 August 1830.
|Physical description||Ink on paper|
|Related records in the catalogue||AP/14/3|
Fellows associated with this archive
|NA1206||Kater; Henry (1777 - 1835)||1777 - 1835|