Image of the W. & S. Jones improved achromatic telescope

Image of the W. & S. Jones improved achromatic telescope

Usage conditions apply
Engraved image from the “Directions” for using the improved achromatic telescope made by W. & S. Jones of London. Andrew Ellicott (1754-1820), American surveyor and geodesist, used a telescope of this sort to observe the moons of Jupiter, to determine longitude on earth. That telescope is now in the Museum collections.
Currently not on view
Object Name
book page
one page: 7 in x 8 in; 17.78 cm x 20.32 cm
overall with backing: 7 7/8 in x 9 in x 1/2 in; 20.0025 cm x 22.86 cm x 1.27 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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