From the readily available sources in English one can learn that Leon Chwistek was born in 1884 in Zakopane, studied logic at Göttingen briefly during 1908 and 1909, at Krakow under Ślezyński and Zaremba, and then taught in a secondary school in Krakow for several years.¹ After 1929 Chwistek was a Professor of Logic at the University of Lwów in a position for which Alfred Tarski had also applied. His interests in the 1930s were in a general system of philosophy of science, published in 1948 in English as The Limits of Science.