Maclure was born at Ayr in Scotland. After a brief visit to New York in 1782 he began active life as a partner in a London firm of American merchants. In 1796 business affairs took him to Virginia, U.S.A., which he thereafter made his home. In 1803 he visited France as one of the commissioners appointed to settle the claims of American citizens on the French government; and during the few years then spent in Europe he applied himself with enthusiasm to the study of geology.
On his return home in 1807 he commenced the self-imposed task of making a geological survey of the United States. Almost every state in the Union was traversed and mapped by him, the Allegheny Mountains being crossed and recrossed some fifty times. The results of his unaided labours were submitted to the American Philosophical Society in a memoir entitled Observations on the Geology of the United States explanatory of a Geological Map, and published in the Society's Transactions (vol. iv. 1809, p. 91) together with the first geological map of that country. This antedates William Smith's geological map of England by six years. In 1817 Maclure brought before the same society a revised edition of his map, and his great geological memoir was issued separately, with some additional matter, under the title Observations on the Geology of the United States of America. Subsequent survey has corroborated the general accuracy of Maclure's observations.
In 1819 he visited Spain, and attempted, unsuccessfully, to establish an agricultural college near the city of Alicante. Returning to America in 1824, he settled for some years at New Harmony, Indiana, and sought to develop his scheme of the agricultural college. Failing health ultimately constrained him to relinquish the attempt, and to seek (in 1827) a more congenial climate in Mexico. There, at San Angel, he died.
This article incorporates text from the public domain 1911 Encyclopædia Britannica.
WilliamMaclure (1763 - March 23, 1840) was an American geologist.
This antedates William Smith's geological map of England by six years.
In 1817 Maclure brought before the same society a revised edition of his map, and his great geological memoir was issued separately, with some additional matter, under the title Observations on the Geology of the United States of America.
WilliamMaclure was a key figure in the American Philosophical Society and later of the Academy of Natural Sciences in Philadelphia, which both attracted many overseas scholars and became centres for the exploration of the continent.
WilliamMaclure thought Pestalozzi’s system was the most rational he had ever seen and was particularly enthused by the emphasis placed by Pestalozzi on the development of the individual and the practical education provided.
Maclure believed that ‘children under proper management, can feed and clothe themselves by the practice of the best and most useful part of their instruction; and in place of being a burden, they would be a help to all concerned with them’ (quoted in Silber: 311).
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