Friedrich Wilhelm Ludwig Leichhardt, a Prussian scientist, is remembered for his long 旅行 in 1844-5 from the Darling 負かす／撃墜するs to Port Essington, an 早期に 解決／入植地 in the far north of the Northern 領土. He proceeded up the Burdekin Valley, crossed the Dividing 範囲, and discovered the Lynd and Mitchell Rivers. After に引き続いて the Mitchell, Leichhardt skirted the shores of the 湾 of Carpentaria. The exhausted party lost much 価値のある 器具／備品 at the Roper River and finally arrived at Port Essington, in December, 1845. He made the return 旅行 by sea.

In 1846-47 Leichhardt was 軍隊d by heat and 干ばつ to turn 支援する from an 試みる／企てる to 横断する Australia from east to west, but すぐに afterwards again 始める，決める out on an 陸路の 旅行 to Perth. From this 探検隊／遠征隊 he did not return, and nothing 確かな is known of his 運命／宿命.

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