My observations on the geology of eastern Kansu are limited to two traverse lines. The first route was a detour from Ping Liang touching Ku Yuan Hsien and Hai Yuan Hsien when Dr. Andersson and I were going up My observations on the geology of eastern Kansu are limited to two traverse lines. The first route was a detour from Ping Liang touching Ku Yuan Hsien and Hai Yuan Hsien when Dr. Andersson and I were going up