Returning to Europe in July 1866, his excellent botanical collections and the wealth of other scientific data led to grants being made by the Berlin Academy of Sciences from the 'Humboldt Stiftung fur Naturforschung und Reisen' and by the Berlin Geographical Society 'Ritter Stiftung' to finance his exploration of the Bahr el Ghazal region of the Sudan. The journey, from 1869 until 1871, led to his discovery of the Ud1l river, for which he was awarded the 'Founders Medal' by the Royal Geographical Society in 1874. Returning once more to Egypt in 1874 he spent the next thirteen years in Cairo. In 1875 he became the first president of the Khedivial Geographical Society. From 188o until 1889 he was the director of the Cairo Museum. He travelled extensively through Egypt, contributing much to our knowledge of botany, geography and archaeology. In the summer of I88o he visited the Lebanon and in the spring of 1881 the island of Socotra. Learning of Professor Balfour's expedition of I88o, Schweinfurth, with characteristic generosity, handed over his own valuable plant collection to Professor Balfour for study and publication. In July 1888 he retired to Berlin, although spending the winter months in northern Africa and Arabia. In 1888-89 he visited the Yemen in order to rediscover plants from some of Forsskal's original collecting localities (Christensen, 1922), and in 1891 and I894 explored the Italian colony of Eritrea. The winters of I901, 1906 and 1908 were spent in Algiers and Tunisia, with his final visit to Egypt in 1914. He died in Berlin on the 19th September 1925, in his 89th year. Schweinfurth was a great scholar, a gifted naturalist and explorer, rendering outstanding contribution in the fields of botany, zoology, anthropology, geography, geology and archaeology; it was to Egyptology that he was to devote much of his later years. His rich collections contain many type specimens. Leeuwenberg (1965) gives the following herbaria, BO, BR, FL, G, K, LE, P, S, W. & WU as having isotypes of the Berlin collection destroyed during the war.