Bound 1958
Addresses a larger research project 
the sexual life and family relationships of the Ploynesians
 
"Bengt Danielsson (1921-1997) was a Swedish ethnographer and writer. He was dr.philos. and head of the ethnographic museum in Stockholm. Bengt Danielsson participated in Thor Heyerdahl's Kon-Tiki expedition in 1947 and later several other expeditions in Pacific Ocean." - Wikipedia