From:
John Frederick William Herschel
To:
William Henry Sykes
Date:
5 March 1852
Source of text:
MM/16/175, Royal Society
Summary:
No summary available.
Contributor:
Royal Society
Showing 1–2 of 2 items
No summary available.
Wants to begin using decimal fractional weights of pounds and ounces at the Royal Mint, rather than pennyweights and grains. Would like to extend this method beyond the Mint. Asks for date of heliacal rising of Sirius at Athens in the time of Euripides.