SPORT AND SCIENCE ON THE 
time, much close study and hard work will be 
required to reduce them to a system. There is 
evidence of great volcanic disturbance all along, 
and northward of this border line. 
Nowhere are the sedimentary rocks visible, 
except well to the east of the eastern extremity 
of the loop, and far to the north-west of its western 
extremity. 
This chapter is divided into nine parts, each 
dealing with a different section of country. The 
first four include the sedimentary formations 
which lie south of the outer loop of the Wall; 
while of the others, four consist of notes upon the 
igneous and metamorphic rocks just mentioned, 
and one (Part 8) deals with the recurrence of the 
sedimentary rocks in and west of North-western 
Shansi. 
The parts are as follows :— 
Part 1. The geology of the country traversed by 
the Chén-T’ai Railway : Western Chihli 
and Eastern Shansi. 
Part 2. The geology of the country traversed by 
Anderson and the author in 1908 : Nor- 
thern Shensi, the Ordos, and Western 
Shansi. 
Part 8. The geology of the Upper Fén Ho basin 
Western Shansi. 
Part 4. The geology of the country traversed by 
the Peking-Kalgan Railway, North 
Chihli. 
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