RESEARCH IN CHINA. PLATE XXVII. 

Huang-t’u-chai, Shan-si, atlas sheet B III. View in lower part of loess basin of Huang-t’u-chai, 
showing characteristic erosion 
forms in stratified Huang-t?u. Note natural br idge over tunnel soaked out by water, In the distance the broad plain of the 
basin stretches eastward to limestone hills. 
