National Geographic May 1921

Western Siberia and the Altai Mountains: With Some Speculations on the Future of Siberia
Traveling along the great Trans- Siberian Railway from Moscow to the Sea of Japan, the author finds a land of unrealized agricultural potential.
The People of the Wilderness: The Mongols, Once the Terror of All Christendom, Now a Primitive, Harmless Nomad Race
The Chinese Republic has ended the autonomy of Mongolia, marking the final degradation of an empire that once stretched from the Yellow Sea to Europe’s Adriatic.
New Map of Asia
Conflict in Europe wrought significant political change in this vast and varied home to more than half the world’s population.