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Gustaaf Adolf Frederik Molengraaff


Gustaaf Adolf Frederik Molengraaff (27 February 1860 in Nijmegen – 26 March 1942 in Wassenaar) was a Dutch geologist, biologist and explorer. He became an authority on the geology of South Africa and the Dutch East Indies.

Gustaaf Molengraaff studied mathematics and physics at Leiden University. From 1882 he studied at Utrecht University. As a student he made his first journey overseas when he joined the 1884-1885 expedition to the Dutch Antilles led by W.F.R. Suringar and K. Martin. He became PhD with a thesis on the geology of Sint Eustatius. He studied crystallography in Munich, where he also took the opportunity to study the geology of the Alps nearby.

In 1888 Molengraaff took a job as a teacher (later as professor) at the University of Amsterdam. Before his assignment courses in geology were given by the chemist J.H. van 't Hoff. During his assignment in Amsterdam Molengraaff travelled to South Africa to study gold deposits (1891) and to Borneo (1894) where he explored large parts of the inland. Teaching at Amsterdam was not to his liking, because there were too little materials and students available.


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