SINO-MONGOLIAN FRONTIER 
Neither of these towns is of much import- 
ance. 
Ning-wu Fu is a poor looking city of no great 
importance. Its walls, temples and gate towers 
are in a sad state of disrepair. It is situated on 
the Hui Ho, a tributary of the San-kan Ho, near 
the source of the Fen Ho. The inner loop of the 
Great Wall passes from east to west about five 
miles to the north, and its towers may be seen 
from the city wall. 
On a hill behind the city lie two very large 
tower-forts, long abandoned and allowed to crumble 
and decay. 
The business quarter of the city is small and 
unimportant, showing how poor the inhabitants 
are. There is no special produce or manufacture, 
and but for the fact that the surrounding dis- 
tricts are governed from this city, it would doubt- 
less cease to exist as such. 
At Tung-tsai near Ning-wu Fu we collected a 
good series of molerats (Myospalax fontanus), 
chipmunks (Eutamias asiaticus intercessor) and 
pikas (Ochotona bedfordi). Of these the molerat, 
which was first identified as Myospalax fontanieri 
was new to science, while the chipmunk proving 
to be an intermediate form between the Chihli 
species (E. a. senescens) and that from the Ordos 
(E. a. ordinalis) was described as a new sub-species. 
Single specimens of the little wood pika (Ocho- 
tona sorella) and the allactaga (Allactaga mongolica) 
35 
