The socalled Sino-Swedish Expedition was a bilateral undertaking led by Sven Hedin that conducted scientific research in northern and northwestern China from 1927 to 1935. The expedition was particularly concerned with the meteorology, topography, and prehistory of Mongolia, the Gobi Desert, and Xinjiang. Chiang Kai-shek was one of the patrons of the expedition. In the years 1927-32 the party travelled from Beijing via Baotou, Mongolia, Gobi Desert, Xinjiang to Urumqi. Some of the adventures of these years are described in this book, that was originally published in 1931.