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Alexander Agassiz
Alexander Agassiz , 1835-1910, American naturalist and industrialist, b. Neuchâtel, Switzerland; son of Louis Agassiz , stepson of Elizabeth Cary Agassiz . He came to the United States in 1849 and studied at Harvard, receiving degrees in engineering (B.S., 1857) and natural history (B.S., 18...
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Louis Agassiz
Louis Agassiz (Jean Louis Rodolphe Agassiz) , 1807-73, Swiss-American zoologist and geologist, b. Môtiers-en-Vuly, Switzerland. He studied at the universities of Zürich, Erlangen (Ph.D., 1829), Heidelberg, and Munich (M.D., 1830). Agassiz practiced medicine briefly, but his real interes...
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Louis Agassiz Fuertes
Louis Agassiz Fuertes , 1874-1927, American artist and naturalist, b. Ithaca, N.Y., grad. Cornell Univ., 1897. His paintings of birds appear in most of the leading American ornithological works published in the latter half of his lifetime. He is also known for his murals and for his habitat groups a...
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Lake Manitoba
Lake Manitoba 1,817 sq mi (4,706 sq km), SW Man., Canada; one of the largest lakes of North America. A remnant of glacial Lake Agassiz, it is fed by Lake Winnipegosis and drains into Lake Winnipeg. Its shores are marshy. The lake has commercial fisheries.
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Minnesota
Minnesota river, 332 mi (534 km) long, rising in Big Stone Lake at the W boundary of Minnesota and flowing SE to Mankato, then NE to the Mississippi S of Minneapolis. Earlier called the St. Peter or St. Pierre, it was an important route of explorers and fur traders. The river follows the valley of ...
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Alpheus Hyatt
Alpheus Hyatt 1838-1902, American zoologist, b. Washington, D.C., grad. Harvard, 1862. He was a devoted follower of Louis Agassiz. From 1870, Hyatt was custodian and later curator of the Boston Society of Natural History. He also taught zoology and paleontology at the Massachusetts Institute of Tec...
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Lake of the Woods
Lake of the Woods 1,485 sq mi (3,846 sq km), c.70 mi (110 km) long, on the U.S.-Canada border in the pine forest region of N Minn., SE Man., and SW Ont. More than two thirds of the lake is in Canada. A remnant of former glacial Lake Agassiz, it is fed by the Rainy River and drained to the northwest...
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David Starr Jordan
David Starr Jordan 1851-1931, American scientist and educator, b. Gainesville, N.Y., M.S. Cornell, 1872, M.D. Indiana Medical College, 1875, and studied under Louis Agassiz at Penikese Island. He taught (1875-79) at Butler Univ. and in 1879 became professor of zoology and head of the department of ...
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Red River
Red River 1 River, 1,222 mi (1,967 km) long, southernmost of the large tributaries of the Mississippi River. It rises in two branches in the Texas Panhandle and flows SE between Texas and Oklahoma and between Texas and Arkansas to Fulton, Ark. It then turns southward, enters Louisiana, and crosse...
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glacial periods
glacial periods times during which large portions of the earth's surface were covered with thick glacial ice sheets. In the Pleistocene epoch , in the Carboniferous and Permian periods of the Paleozoic era era, and in Huronian time of the Precambrian , the earth experienced an overall cooli...
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