Reports on the author's travels in Laos to discover the extent to which Buddhism had been implanted in Northern Indochina. Describes the housing and clothing of villagers, the ceremonies and festivals of the new year, and the sacrifice of the buffalo in Sam Neua. Relates experiences in Pong Saly in Akha territory, in Sip Song Panna (12 principalities on the banks of the Mekong), in Luang Prabang and in Lai Chau. Describes the rites carried out by the sorcerers to call the spirits (or phi) and methods of traveling in the area. Traces contacts between East and West from Third Century, B.C. [TAIC]