Members of the malaria commission at the League of Nations, who arrived in the RSFSR, enter the building of the Microbiological Institute; treat the larvae of anopheles mosquito. On the streets of Rostov-on-Don with banners are columns of athletes during the district Olympics on August 7, 1924. Among the spectators at the stadium - N.I. Muralov, B.P. Posern. Works on draining the swampy soil in the village of Letrozovskaya. Pilots and passengers board a plane carrying out air passenger traffic Rostov-Moscow. Participants in equestrian competitions on a treadmill during the equestrian sports festival Society of Friends of Children at the hippodrome in Rostov-on-Don. Athletes parade at a stadium in Rostov-on-Don during the Regional Olympics. Spectators at the stadium watching the running competition.