EditorialBoxstead. The draughtsman used Balsham Steeple and West Wickham Steeple at the top left of this plan as triangulation points. From these positions, he made angular observations with a theodolite to measure the height of the land and to plot individual ...
EditorialGroup of Trigonometrical Survey of India staff. A portrait group with a theodolite. The four figures in the group are (left to right): Thomas George Montgomerie; Sir Andrew Scott Waugh; James Thomas Walker; Sir Henry Edward Landor Thuillier. Yule Colle...
EditorialNegative - Skenes Creek, via Apollo Bay, Victoria, 1910, A Government Surveyor's camp. There is a theodolite on the right, a water bag at the front of the tent and one of the men holds an accordion.
EditorialLantern Slide - Weather Balloon Experiment on the Discovery, BANZARE Voyage 1, Antarctica, 1929-1930, Lantern slide of a scientific party aboard the ship Discovery using a theodolite to measure the inflow of air at high elevations over the Polar region...
EditorialGroup of Trigonometrical Survey of India staff. A portrait group with a theodolite. The four figures in the group are (left to right): Thomas George Montgomerie; Sir Andrew Scott Waugh; James Thomas Walker; Sir Henry Edward Landor Thuillier. Yule Colle...
EditorialBoxstead. The draughtsman used Balsham Steeple and West Wickham Steeple at the top left of this plan as triangulation points. From these positions, he made angular observations with a theodolite to measure the height of the land and to plot individual ...
EditorialPortable theodolite by Edward Troughton. Copperplate engraving by W. Lowry after an Illustration by J. Farey from Abraham Rees' "Cyclopedia or Universal Dictionary," London, 1816.
EditorialSurveying level or grand theodolite designed by Jesse Ramsden. Copperplate engraving by W. Lowry after an Illustration by J. Farey from Abraham Rees' "Cyclopedia or Universal Dictionary," London, 1819.
EditorialMap of an estate in East Sheen, Surrey, surveyed and delineated using a theodolite by James Wadmore, 1811. Copperplate engraving by W. Lowry after an Illustration from Abraham Rees' "Cyclopedia or Universal Dictionary," London, 1817.