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…showed last 75 words of 2717 total…dies of terrestrial magnetism and electromagnetic theory. During the last years of his life Gauss was concerned with topics now falling under the general heading of topology, which had not yet been developed at that time, and he correctly predicted that this subject would become of great importance in mathematics. See biography by T. Hall (tr. 1970). http://www.sinc.sunysb.edu/Stu/knichols/guasswq.html http://web.ics.purdue.edu/~fellerba/Gauss.html