Go back to article: Chronometers, charts, charisma: on histories of longitude

Figure 8

Pen and ink notes and a sketch of a shoulder mounted instrument for using a telescope on a ship from 1824

Samuel Parlour’s ‘Description of an apparatus to render a Telescope manageable on Shipboard’: a shoulder-mounted device for observations of eclipses of the moons of Jupiter, submitted to the Board of Longitude in 1824.