A parade and a show of the Representative Orchestra of the Warsaw Military District on the occasion of the Officer Cadet Day. Aleksander Przepiora conducts a research on sulfate removal. How to clean water with the help of bacteria. From the Mint to the 10th Congress of the PZPR. Zapiski’ written by Miron Bialoszewski is staged at the Powszechny Theatre. A dolomite mine in Siewierz.