I had now measured bases, besides those of latitude for my Trigonometrical work, and I should not have regretted even a day longer in camp, to have had more time to protract angles, but time was too precious, as my men were voluntarily on very reduced rations.
"Journal of an Expedition into the Interior of Tropical Australia In Search of a Route from Sydney to the Gulf of Carpentaria (1848) by Lt. Col. Sir Thomas Livingstone Mitchell Kt. D.C.L. (1792-1855) Surveyor-General of New South Wales"
Thomas Mitchell
This can be compared with the actual distance in miles between the two stations, which has been ascertained by the Trigonometrical survey.
"The Story of the Heavens"
Robert Stawell Ball
The next morning we met and passed a Government Survey party, under the command of Mr. Brooks, who was engaged in a very extensive Trigonometrical survey.
"Australia Twice Traversed, The Romance of Exploration Australia Twice Traversed. The Romance Of Exploration, Being A Narrative Compiled From The Journals Of Five Exploring Expeditions Into And Through Central South Australia, And Western Australia, From 1"
Ernest Giles