POPPER, K.R. Logik der Forschung. Zur Erkenntnistheorie der modernen Naturwissenschaft. Vienna, J. Springer Vlg., 1935. vi, 248, (2) pp. Or. printed wrps. (Wrappers sl. browned in places and w. a few foxing spots, name entry of J. Ridder on title).
First edition of Popper's first book, one of the most important philosophical books of the century, though not published in English until 1959 ("The Logic of Scientific Discovery"). The work had a profound effect on the philosophy of science, and on the methods of practising scientists. The 'Logik der Forschung' addressed the problem that preoccupied Popper throughout the rest of his career, that of distinguishing proper science from pseudoscience.€ 800