Cracovie, Imprimerie de L'Université, 1911. 8vo. In the original printed wrappers. Offprint from "Bulletin de L'Académie des Sciences de Cracovie", Janvier 1911. Very fine and clean. Pp. (2), 28-39.
Scarce offprint of Smoluchowski's paper on the interaction of spheres that moves in a viscous liquid.
Order-nr.: 48717