 In 1921, Andreev was appointed a member of the Scientific Commission for the Survey of the Life of the Indigenous Population of Turkestan under the Council of People's Commissars of the Turkestan ASSR.He led an expedition to compile an ethnographic map of the republic.In the years 1921-1922, the expedition worked in Samarkand, Kattakurgan, Jizzakh and Khojand.