Francois Emile Matthes (1874-1948) was an American author. He spent much of his youth in Switzerland, where he became interested in mountains and glaciers. He went to the United States in 1891 to study at Massachusetts Institute of Technology and graduated as a civil engineer. He joined the U. S. Geological Survey in 1896, where he mapped and surveyed several National Parks, including Yosemite. Matthes also published several popular articles in Yosemite Nature Notes. Amongst his other works are Sketch of Yosemite National Park (1912) and Geologic History of the Yosemite Valley (1930). Это и многое другое вы найдете в книге Sketch of Yosemite National Park (Illustrated Edition) (Dodo Press) (F. E. Matthes)