Lot Essay
The inclusion of the hour scale possibly indicates that this instrument was used for on-shore observations for checking siderial time.
William Jones a student of Benjamin Martin, also worked with George Adams the Younger. He joined his father John in 1784 in the firm Jones & Son. In 1794 Samuel joined his brother and the company became listed as William & Samuel Jones, working from Holborn Hill until 1802 then to High Holborn, where they remained until 1860. William was heavily influenced by Adams Younger whose copyrights he purchased in 1795. He was subsequently involved in editing the Adams catalogues and refind some of the more complex designs, especially the Adams portable astronomical instruments
Literature
J.A.Bennett The Divided Circle 1987
Nicholas Goodison English Barometers 1680-1860 1985
William Jones a student of Benjamin Martin, also worked with George Adams the Younger. He joined his father John in 1784 in the firm Jones & Son. In 1794 Samuel joined his brother and the company became listed as William & Samuel Jones, working from Holborn Hill until 1802 then to High Holborn, where they remained until 1860. William was heavily influenced by Adams Younger whose copyrights he purchased in 1795. He was subsequently involved in editing the Adams catalogues and refind some of the more complex designs, especially the Adams portable astronomical instruments
Literature
J.A.Bennett The Divided Circle 1987
Nicholas Goodison English Barometers 1680-1860 1985