Note 66 — III A CENTURY OF GEOLOGY.—STEPS OF PROGRESS IN THE INTERPRETATION OF LAND FORMS
Reading edition
Pumpelly, Raphael, Geological researches in China, Japan, and Mongolia, Smithsonian Contributions, No. 202, 1866.
Reading edition
Pumpelly, Raphael, Geological researches in China, Japan, and Mongolia, Smithsonian Contributions, No. 202, 1866.