SINO-MONGOLIAN FRONTIER 
‘Part 5. The geology of the Ch’ing Ho and Hsi- 
wan-tzu district, North Chihli. 
Part 6. The geology of the country traversed by 
the Chang-sui Extension Line: North- 
western Chihli and North-eastern 
Shansi. 
Part 7. The geology of the country from Yang- 
kao to K’uei-hua-ch’éng, North Shansi. 
Part 8. The sedimentary rocks, north-west of 
Pi-ch’ien-ch’i, North-western Shansi. 
Part 9. The geology of the Mongolian Plateau, 
Inner Mongolia. 
PART I 
THe GEOLOGY OF THE COUNTRY TRAVERSED BY 
THE CHEN-T’aI Raitway: WESTERN CHIHLI 
AND EASTERN SHANSI 
This section of country contains one of the 
most extensive and important coalfields in China, 
and therefore deserves closer attention than the 
writer has been able to give it. The following 
notes have been gathered during several journeys 
by rail between Shih-chia-chuang and T’ai-yiian 
Fu, so that the conclusions drawn therefrom can 
only be considered as tentative and not final. It 
is hoped, however, that they will be of value, as 
this district has not been too thoroughly explored 
or described. 
Richthofen traversed this area before any railway 
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