Astronomical and Calendrical Volvelle or 'New Astronomical Instrument', Designed by James Ferguson, Adapted and Reissued by Lewis Evans and Thomas Jones, London, 1817
|Inventory Number:|| 14576|
|Object Type:|| |
James Ferguson (Designer)|
Revd Lewis Evans (Reviser)
Thomas Jones (Publisher)
|Brief Description:||Paper and card instrument consisting of a circular base scale on a square sheet and two concentric volvelles including a celestial map, mounted on a square board, the scales and map printed from engraved plates, hand coloured, and varnished or lacquered. It is a version of one of James Ferguson's paper instruments which has been brought up to date by the mathematician Lewis Evans and re-issued by the instrument maker Thomas Jones; the companion instrument (14575) has the name of the 18th-century engraver J. Mynde, so this too may have been directly adapted using the original copper printing plates, amended with information valid for the 19th century, calculated by Evans.|
One of a pair with 14575; the two instruments formerly hinged together, the base board of each functioning as the boards of a bound volume or portfolio, part of the leather spine remaining along one edge of each.
|Primary Inscriptions:||'A NEW ASTRONOMICAL INSTRUMENT. Shewing the Day of the Month, Change and Age of the Moon, the Places of the Sun and Moon in the Ecliptic, with the times of the rising, southing and setting of the Sun, Moon, and Stars of the first, second and third Magnitude, from A.D. 1817 to 1864 inclusive.'.
'J. Ferguson, Inv. et delin.' ; 'Calculations continued by the Revd.. Mr L Evans of the R.M.A.' ; 'Published Novr.. 1817 by Thomas Jones 62 Charing Cross London'.|
|Provenance:||No indication of provenance, but the connection with Revd Lewis Evans FRS (1755-1827) suggests it may have belonged to his great grandson Lewis Evans (1853-1930), and is thus part of the founding collection of the Museum.|