The second part of my trip was from almost the extreme east to the extreme
west of Yün-nan—from Tong-ch'uan-fu to Bhamo, in British Burma. The following
was the route chosen, over the main road in some instances, and over untrodden
roads in others, just as circumstances happened:

I also made a rather extended tour among the Miao tribes, in country
untrodden by Europeans, except by missionaries working among the people.