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Encyclopedia Britannica - Main :: DAH-DEM |
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DAWSON, SIR JOHN WILLIAM (1820-1899) , Canadian geologist, was born at Pictou, Nova Scotia, on the 30th of October 182o. Of Scottish descent, he went to Edinburgh to complete his education, and graduated at the university in 1842, having gained a knowledge of geology and natural history from Robert Jameson. On his return to Nova Scotia in 1842 he accompanied Sir Charles Lyell on his first visit to that territory. Subsequently he was appointed to the post of superintendent of education (1850-1853); at the same time he entered zealously into the geology of thl' country, making a special
measures
Silurian
Devonian and Carboniferous rocks of Canada for the Geological Survey of that country (1871-1873). From 1855 to 1893 he was professor of geology and principal of M'Gill University, Montreal, an institution which under his influence attained a high reputation. He was elected F.R.S. in 1862. When the Royal Society of Canada was constituted he was the first to occupy the presidential chair, and he also acted as president of the British Association at its meeting at Birmingham in 1886, and of the American Association for the Advancement of Science. Sir - William Dawson 's name is especially associated with the Eozoon canadense, which in 1864 he described as an organism having the structure of a foraminifer. It was found in the Laurentian rocks, regarded as the oldest known geological system. His views on the subject were contested at the time, and have since been disproved, the so-called organism being now regarded as a mineral
appearance on this earth within quite recent
mineral
Edward
Island
His son, GEORGE MERCER DAWSON (1849-1901), was born at Pictou on the 1st of August 1849, and received his education at M'Gill University and the Royal School of Mines, London, where he had a brilliant career. In 1873 he was appointed geologist and naturalist to the North American boundary commission, and two years later he joined the staff of the geological survey of Canada, of which he became assistant director in 1883, and director in 1895. He was in charge of the Canadian government's Yukon
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