Scientific expedition of the Soviet research vessel "Vityaz" to New Guinea. The Vityaz vessel in the Pacific Ocean en route to its destination. The members of the expedition disembark on the coast of New Guinea, erect an obelisk in memory of the stay in New Guinea of the Russian scientist-researcher N.N.Miklouho-Maclay. Drawings, pages of N. N. Miklukho-Maclay's diary, postage stamps with the image of N. N. Miklukho-Maclay. Landscapes of New Guinea. Residents of New Guinea - Papuans learn to drive a tractor, play football, sell bananas. Santa Claus gives Christmas presents to Papuans. Papuan village; residents cook food on a fire: bananas, coconut. City of Leningrad; the building of the Institute of Ethnography of the USSR Academy of Sciences named after N. N. Miklukho-Maclay. Exhibits of the Ethnographic Museum about the stay of N. N. Miklukho-Maclay in New Guinea.