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Plate 341 from chapter 131 of Gleanings of natural history
showing the area between the end of the Strand and St Paul's Cathedral
Royal Exchange
3rd August 1976
View with wharves in the foreground and signs for Bull Wharf
Henry Kater's telescope Size:Standard: 6 x 4in Plate 341 from chapter 131Telescope used by Henry Kater for pendulum observations. Geodesist and metrologist Henry Kater (1777 1835) invented Kater's pendulum in 1817 which enabled the strength of gravity to be determined. This sight was used to view the pendulum during observations in order to avoid parallax error. ca. 1820
