Ednard Yogel, a German traveller, born in Crefeld, Prussia, March 7, 1829, murdered in Africa in 1856. He was the son of the Saxon educator Johann Karl Vogel (1795-1862), studied astronomy at Berlin under Encke, and was attached for two years to Bishop's observatory at Regent's park, London, where he aided Hind in his discoveries. In 1852 he volunteered his services as assistant of Barth, and left London, accompanied by two volunteers from the corps of sappers and miners, in February, 1853, taking with him a full supply of instruments. He reached Moorzook in Fezzan in August, 1853, visited Lake Tchad and proceeded to Kuka, and on Dec. 1,1854, met Barth at Boondi, 230 m. W. of Kuka. He subsequently visited Yakoba, crossed the Tchadda in April, 1855, and penetrated into the kingdom of Waday, where he was detained for some time, and finally beheaded. In the belief that he might still be alive several expeditions were undertaken in search of 'him, the most noteworthy of which was that of Von Heuglin in 1860. Some of the travellers perished in the attempt. - See Erinnerungen an einen Verschollenen (Leipsic, 1863), by his sister Elise Polko the novelist. (See Polko, Elise).