TRIP TO THE NORTHWARD 145 
principally annuals, and of several species. This dis- 
trict is rich in Thecla, and I have taken as many as 
300 7. Bieti in one morning with my forceps off 
the droppings of the baggage animals on the Lhassa 
road. 
On the 29th I returned to Ta-tsien-lu, having 
made a good collection. I had now a good series of. 
Parnassius Imperator and of many other species, the 
best hours for collecting being between eight and eleven 
in the forenoon, for afterwards a strong breeze sprung 
up usually, and lasted till nearly five. 
On August 10 I made a trip to the northward, and. 
as there were no villages in the mountains I intended 
to visit I took a Tibetan tent with me. These are 
made of Chinese cloth embroidered with blue, and are 
used by the Tibetans in the summer, when they make 
trips to the mineral springs in the mountains, in which 
they bathe. At 5 p.m.I had arrived at an altitude of 
11,000 feet. The tent was pitched and all made snug. 
The scenery was magnificent, the snow above us com- 
mencing at an altitude of about 16,000 feet, the country 
between being well wooded, principally with pines. 
The next day I shot a few Crossoptilon Tibetanwm in 
the morning, but none in the afternoon. The country 
is very difficult to get over at all, the slopes being very 
steep, and in other places large quantities of stones and 
L 
