SINO-MONGOLIAN FRONTIER 



With this we were content and continued our 

 homeward journey. 



Once more reaching Tsing-lo Hsien, we decided 

 to take a different course from that followed on 

 our outward journey, so turned eastward up a 

 large tributary of the Fen Ho. 



Following this up to its source we crossed two 

 high passes in a granite dyke, which here pro- 

 trudes through the grey limestone. The last day 

 into T'ai-yiian Fu, we travelled for about ten 

 miles along a deep and narrow gorge in the same 

 formation, finally issuing out upon the plain at its 

 northernmost point. 



The last fifteen miles were quickly traversed, 

 and we found ourselves home once more after a 

 most enjoyable and successful trip. 



We had explored and mapped the greater 

 portion of the upper reaches of the Fen Ho, had 

 discovered some hitherto unknown lakes and 

 extensive forests, and had brought out a good 

 collection of mammals, amongst which one at 

 least was new to science, while six were new to 

 the Institution we represented. 



We had enjoyed as good sport as any one 

 could wish for, so that we felt well satisfied with 

 our winter's work. 



After our return to T'ai-yiian Fu, our work was 

 discontinued for over a year while we paid a visit 

 to Europe. 



59 



