Henry Kater's telescope Size:Standard: 6 x 4in Plate 341 from chapter 131

Plate 341 from chapter 131 of Gleanings of natural history

In the possession of John Conduit Esqr

puts on a record in a London restaurant whilst having lunch with friends

they failed to hatch as they had been left at one point whilst she went off to shed her skin

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