From:
George Biddell Airy
To:
Sir John Herschel
Date:
[19 August 1841]
Source of text:
TxU:H/M-0662; Reel 1084
Summary:
Outlines suggestions from [Drinkwater-]Bethune for improving 'Report of Standards.' Bethune distinguished Exchequer, Local, and Parliamentary (or National) standards, and preserved unit called 'land chain' equal to twenty yards.
Contributor:
John Herschel Project