The sixth scientific expedition to the Aknīste, Nereta and Ventspils districts in 1952. The collection consists of 5661 folklore material units and other data, collected by 18 participants of the expedition. About 600 units were considered soviet folklore (including 125 revolutionary songs of 1905); the rest represents traditional genres, as usually dominated by folksongs, riddles and proverbs.

That was the first pan-Baltic, centralized, multidisciplinary expedition supervised by the Institute of Ethnography at the USSR Academy of Science. However, the process of collecting folklore did not generally differ from previous expeditions. This collection [1895] is the second of two containing fieldwork diaries; here fourteen diaries represent 745 pages of notes. The collection demonstrates an increased interest in amateur poetry and efforts to create popular songs on its basis. The collection includes about 100 photos and 21 sound recordings as well. Rather rare are materials of fishermen folklore from Ventspils district.