Carol McCartney shares the Lake Superior region’s geological research by Charles Van Hise. Carol McCartney, Outreach Manager at the Wisconsin Geological and Natural History Survey, focuses on the ...
For rights and reproduction: The Smithsonian Institution Archives welcomes personal and educational use of its collections unless otherwise noted. For commercial uses, please contact [email protected] ...
Observing without intention and without a grid arouses interest and curiosity, but rarely contributes to developing learning. For centuries, scientists have taken notes of their observations, in ...
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