For a considerable portion of the period between 1853 and 1865 John Petherick, a Welshman, originally a mining engineer, explored the Ghazal region, particularly the main stream and the Jur.
Petherick, Catalogue of Books Relating to Australasia (1899).
MacMichael, Notes on the History of Kordofan before the Egyptian Conquest (Cairo, 1907); John Petherick, Egypt, the Sudan, and Central Africa (London, 1861); Ignaz Pallme, Beschreibung von Kordofan (Stuttgart, 1843; trans.
Petherick, Travels in Central Africa (2 vols., London, 1862); W.
The successors of Mehemet Ali, in an endeavour to make the country more profitable, extended their conquests to the south, and in 1853 and subsequent years trading posts were established on the Upper Nile, the pioneer European merchant being John Petherick, British consular agent at Khartum.'