At work in the field in Inner Mongolia, 1927. The geologist and archaeologist Yuan Fuli (???, 1893–1987) of Tsinghua University, the Swedish expedition leader Sven Hedin, and the Chinese expedition leader, Xu Bingchang of Peking University. From Sven Hedin’s Across the Gobi Desert (1931). WITH PERMISSION OF THE SVEN HEDIN FOUNDATION, STOCKHOLM.
The Sino-Swedish Expedition conducted scientific surveys of China’s northwestern provinces from 1927 to 1935. The expedition research program covered