This portrait of J. Louis Agassiz(1807-1873) was done in
the 1920s by Abner Lowe. Agassiz was a pioneer in the field
of glacial studies and the effects that they had on the Earth.
His work was some of the first to suggest that there had been
an ice age on Earth, and that the boulder and rock deposits
had not been made by the great flood of the Bible.