louis r. agassiz

Science Dictionary
Agassiz   (āg'ə-sē)  Pronunciation Key 
Swiss-born American naturalist whose studies of glaciers and their movement introduced the idea of the ice age in 1840. Agassiz later revolutionized science education in the United States by emphasizing direct observation of the natural environment.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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