From:
Henry Drury Harness
To:
Sir John Herschel
Date:
[13 October 1852]
Source of text:
TxU:H/M-0266.2; Reel 1087
Summary:
Doubts [W. T.] Denison's claim that specific gravity is dependable for testing gold coins. Recommends dismissing Mr. Forbes at once. H. W. Field cannot be selective about assays but must perform these whenever JH requires.
Contributor:
John Herschel Project