it was the most easterly species obtained, as well as the most westerly. It 
was trapped at Liu-ts’un, our most southerly point, and also in the Chiao- 
ch’éng Shan, almost our most northerly point. It is recorded from Ning-wu 
Fu, in North Shansi, and from the Imperial tombs, sixty miles east of Peking, 
in Chihli. Whilst in the country south of Lan-chou I saw a large wolf one 
morning, and in our daily excursions we came across fresh tracks of pigs_and 
musk-deer. There were quite a number of pheasants, but little else. 
The reasons for the termination of the expedition at Lan-chou have 
already been mentioned. I was forced to return to that city, and my work 
ceased till, on July 15th, Grant and I started on our homeward journey with 
the main division of the expedition. We travelled almost continuously till we 
reached T’ai-yiian Fu on September 8th, with a few short halts en route to 
take astronomical observations, or when we were held up by rains. We took 
the unfrequented route which runs in an easterly direction from Lan-chou, 
collecting what material we could along the road. For the first few days our 
path lay through utterly barren and sun-scorched mountains, so that a few 
ground-squirrels only were seen. At Ching-ning Chou, where we stayed two 
days, I secured two specimens of an interesting eastern polecat (Mustela larvata), 
(Plate 51), which is superficially like the European animal, but with larger 
teeth. A new pika (Ochotona annectens), (Plate 52), was shot close to this place 
by one of our men. This species is similar to Ochotona bedfordi, but is smaller 
and with differences in the skull. Several chipmunks (Eutamias asiaticus 
senescens), (Plate 48), were also obtained. The type of this chipmunk was 
described from specimens from near Peking by Mr. G. S. Miller, and like 
Apodemus speciosus, it seems to enjoy a very wide range. 
On July 25th we left Ching-ning Chou and reached a small place to the 
north-east called Chang-t’ai-pu. That night rain fell in such torrents that we 
were unable to proceed next day. Accordingly I enlisted the villagers into my 
service, sending them out to catch or dig up specimens. All that day and 
the next I was inundated with specimens, the following species being well 
represented :—Myospalax cansus, Allactaga mongolica longior (new to science, 
Plate 52), Eutamias asiaticus senescens and Ochotona annectens (new to science, 
Plate 52). A single specimen of Cricetulus anaersoni and another polecat were 
also amongst the animals brought in. I refused to take any more specimens 
of Citellus, having my hands full of more important material. 
The ‘‘allactaga’’ which has been described by Mr. Miller as a new 
form is a species of jerboa. It differs from Dipus sowerbyi in having five toes 
on the hind foot instead of only three, while its ears are considerably longer. 
92 
