Courtesy of U.S. Geological Survey
Top: Northwestern glacier in a photograph taken by Ulysses S. Grant in 1909. Bottom: the same view in 2005, photo by Bruce F. Molnia.
Courtesy of Northwestern University Archives
A letter from William Albert Locy — the biologist for whom Northwestern’s current earth and planetary sciences building is named —to Ulysses S. Grant wishes the geologist "bon voyage."