1843--J. A. Horracks was killed by the explosion of his gun at the head of Spencer's Gulf soon after the start of his expedition.
1844--45-Captain Charles Sturt; Great Central Desert expedition.
1844-45--Dr. Ludwig Leichhardt; first expedition, from Jimbour Station, Darling Downs, to Port Essington; Gilbert, the naturalist, killed by natives.
1845-46--Sir Thomas Mitch.e.l.l; Barcoo expedition.
1846--Dr. Ludwig Leichhardt's second expedition.
1846--A. C. Gregory and brothers; first expedition in Western Australia.
1847--E. Kennedy; to decide the final course of the Victoria, named the Thompson.
1847--Baron Von Mueller; expeditions, for botanical and geographical researches combined, in South Australia and the Australian Alps.
1848--Dr. Ludwig Leichhardt's last expedition.
1848--E. Kennedy's fatal venture up Cape York Peninsula.
1848--A. C. Gregory, with party, explore the Gascoyne.
1848--Governor Fitzgerald, of Western Australia; examined the new mineral discovery, accompanied by A. C. Gregory, and named the Geraldine Aline.
1848-49--J. S. Roe, Surveyor-General of Western Australia; from York to Esperance Bay.
1851--Messrs. Oakden and Hulkes; on west side of Lake Torrens.
1852--Hovenden Hely, in charge of search party for Leichhardt; from Darling Downs.
1854--R. Austin, a.s.sistant Surveyor-General of Western Australia; in search of pastoral country, and to examine the interior for auriferous deposits.
1855--Sir Thomas Mitch.e.l.l died near Sydney.
1855-56--A. C. Gregory and Baron von Mueller North Australian expedition, in search of Leichhardt; discover Sturt's Creek and the Elsey.
1855--B. H. Babbage; to examine country north and east of Adelaide for gold. In a second expedition the same year discovered Blanche Water.
1857--Campbell and party; west of Lake Torrens; and again, with party, looking for pastoral country west of Lake Eyre.
1857--G. W. Goyder, Deputy Surveyor-General of South Australia, to examine and survey the country about Blanche Water.
1857--Colonel Freeling, Surveyor-General of South Australia, sent to verify Goyder's report; decided that Goyder had been misled by a mirage.
1857--Stephen Hack, with Mr. Miller; examined Gawler Range and sighted Lake Gairdner.
1857--Major Warburton crossed Stephen Hack's track.
1857--Messrs. Miller and Dutton explored country back of Fowler's Bay.
1858--Sir Richard G. M'Donnel; exploration to Strangways and Loddon Springs; also up the River Murray to Mount Murchison.
1858--B. H. Babbage; third expedition from Adelaide; superseded by Major Warburton.
1858--Major Warburton, continued the expedition started by B. 11.
Babbage. This trip established the definite size and shape of Lake Torrens.
1858--S. Parry, Government Surveyor, South Australia; an expedition round Lake Torrens, Lake Gregory, and Blanche Water.
1858--Frank Gregory reached the Gascoyne; discovered Mount Augustus and Mount Gould.
1858--A. C. Gregory; Barcoo expedition to search for trace of the course of Leichhardt's party. Confirmation of the supposed ident.i.ty of the Barcoo and Cooper's Creek.
1858--J. M'Dowall Stuart; first expedition.
1859--J. M'Dowall Stuart; second expedition; one of his party, Hergott, discovered and named Hergott Springs.
1859--George E. Dalrymple, discovered main tributaries of the Lower Burdekin, Bowen, and Bogie Rivers.
1860--Edward Cunningham and party explored the Upper Burdekin.
1861--J. Neilson and brothers; in search of pastoral country; from Mount Ranken on the Darling to Cooper's Creek.
1860-61--Burke and Wills' expedition; death of Burke, Wills, and Gray.
1861--J. M'Dowall Stuart's third expedition; he crossed the continent after two attempts.
1861--Frank Gregory discovered the Hammersley Range, Fortescue, Ashburton, De Grey, and Oakover Rivers.
1861--Messrs. Dempster and Clarkson; Western Australia; explorations to the eastward.
1861-62--William Landsborough, in search of Burke and Wills.
1861-62--Frederick Walker, leader of the Rockhampton expedition in search of Burke and Wills.
1861--Alfred Howitt, in charge of Victorian search party for Burke and Wills.
1861--Edwin J. Welch, second in command of Howitt's search party, found King, only survivor of the Burke and Wills expedition.
1861-622.--John M'Kinlay with a relief party for Burke and Wills, from Adelaide.
1862--G. W. Goyder; explorations in the Great Bight.
1862--George E. Dalrymple on the waters of the Upper Burdekin.
1862--Messrs, Delisser and Hardwicke explore from Fowler's Bay to the edge of the Victorian Desert.
1863--Thomas Macfarlane attempted to push inland north of the Great Bight.
1863--Messrs. H. M. Lefroy and party; eastward of York, Western Australia.