?ukasiewicz (Jan) Die Logischen Grundlagen der Wahrscheinlichkeitsrechnung, first edition, text in German, half-title, occasional pencil underlining, previous owner's neat pencil notes to half-title verso, contemporary half-calf, slight bumping to corners and extremities, Krakow, 1913 § Doppler (Christian) Über den Einfluss der Bewegung des Fortpflanzungsmittels auf die Erscheinungen der Äther,- Luft- und Wasserwellen, 3 plates at end, one or two tiny marginal tears, original paper wrappers, small stain to upper cover, light browning to edges, a little rubbed, one or two tiny marginal chips, Prague, 1847; 8vo & 4to (2).*** ?ukasiewicz was an important Polish logician, mathematician and philosopher.