This chapter is dedicated to hydropower , and different means of obtaining energy from water . Wańkowicz recollects the disastrous 1934 flood in Poland , which caused damages estimated at 75 million zlotys . One year after the disaster , construction of the Dunajec river dam and a power plant began at the village of Rożnów , near the site of a medieval castle . According to the plans from the 1930s , the government of the Second Polish Republic envisaged construction of 27 reservoirs in the Vistula Basin , and 19 reservoirs in the Dniestr Basin . Wańkowicz himself visited the Rożnów Dam construction site in the autumn of 1938 , and the book contains several photos from that visit
1934 flood in Poland
1934 flood in Poland
Sztafeta