Who was Guyot?

   Arnold Henry Guyot (1807-1884) was a noted geographer. A native of Neuchatel, Switzerland. An associate of Agassiz. During the ten years he held a professorship in his native town Guyot made a study of Alpine glaciers. He taught that ice pours slowly down the ravines under the influence of gravity, not simply as mud would do, but that a con¬stant freezing and thawing takes place within the body of ice. Guyot also investi¬gated the country around the Central Alps, mapping the districts over which Alpine glaciers, formerly of greater extent, had carried boulders. In 1848 Guyot was invited to become a lecturer at Harvard College. These lectures were afterward published as Guyot's Earth and Man. Guyot was employed by the Massachusetts board of education to lecture on physical geography, and created a revolution in the teaching of that subject. He also prepared a physical geography, a series of descriptive geographies, and a set of wall maps for schoolrooms. In 1855 he became professor of physical geography and geology at Princeton. Professor Guyot organized a system of meteorological observations for the Smithsonian Institution, and was an honorary member of a large number of learned societies throughout the world.