This watercolour of the Princess Parrot, Polytelis alexandrae, was produced to accompany the description of the species in the official report of the Horn Expedition 1895.
In 1894, William Augustus Horn, a wealthy South Australian pastoralist and miner, organised an exploration of central Australia. The Victorian government commissioned Walter Baldwin Spencer, Professor of Biology at the University of Melbourne, to participate as the expedition zoologist. Spencer not only joined the group on its arduous journey but also edited a major publication of its results.
The Horn Expedition is the most comprehensive record of a scientific expedition undertaken in Australia in the 19th century. Sir Walter Baldwin Spencer was the leader of the expedition and the principal editor of the official account. The four volumes are made up of the Narrative, Zoology, Geology and Botany, and Anthropology. The reports were written by the notable Australian scientists of the day, including Spencer himself, Professor Ralph Tate, J.A. Watts, J.H. Maiden, E.C. Stirling, Alfred J. North, Waiter Frogatt, and Edgar Waite. G. A. Keartland was the ornithologist on the expedition.
Many of the species represented are now considered extinct or threatened, making the examples from the expedition a unique resource for research and education. Under agreement, the expedition's specimens were dispersed across several institutions.