Note 68 — III A CENTURY OF GEOLOGY.—STEPS OF PROGRESS IN THE INTERPRETATION OF LAND FORMS
Reading edition
Pumpelly, Raphael, The relation of secular rock-disintegration to loess, glacial drift and rock basins, this Journal, 17, 135, 1879.
Reading edition
Pumpelly, Raphael, The relation of secular rock-disintegration to loess, glacial drift and rock basins, this Journal, 17, 135, 1879.