Here I intersected various lofty distant summits seen on the 21st instant, and could thus connect the whole trigonometrically with back angles to Bindango, Mount Abundance, etc.
"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
26 B.18,510 The following were measured trigonometrically.
"Himalayan Journals V2."
J. D. Hooker
The spaces between his trigonometrically determined points he filled in after photographs, and a series of panoramic sketches which he made from his different stations.
"The Ascent of the Matterhorn"
Edward Whymper