Nomads of the long bow

"From 1940 through 1942 a young anthropologist lived among one of 'the most technologically handicapped people of the world.' With a three-foot digging stick and a cumbersome long bow and arrow, the Siriono Indians struggle daily to survive in the tropical rain forest of eastern Bolivia. Lacking the knowledge to make fire, they borrow it from neighbors, transporting it from camp to camp in a palm spadix. Without the manufacture of watercraft, they wade and swim their way across the jungle rivers of their homeland."