Record

Ref No	DM1306/11/1/1/folio 334-342
Title	Letter from Professor C. Piazzi Smyth to Isambard Kingdom Brunel and Plan of a Prec'n of Equinoxes Stand
Description	Written from 1 Hillside Crescent, Edinburgh. The letter includes a detailed and illustrated description of the instrument stand that Piazzi Smyth has developed for use at sea. The letter describes the physical and mechanical principles behind the device and is illustrated with various sketches. Following the letter is a document titled Plan of a Prec'n of Equinoxes Stand which describes in detail and with diagrams the precise components of the stand with details of their diameter and construction so that it can be replicated by Brunel's workmen. The description also details, in some cases, how the device is intended to work or be used.
Date	9 December 1854
Format	Manuscript volume
Extent	9 pages
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Access Conditions	This material is held at the Brunel Institute - please contact the Brunel Institute to arrange access.

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