Gift of Helen Baum, From the Library of Solomon Lefschetz:

» Introduction to topology

» Topology, by Solomon Lefschetz

» Selected papers, by S. Lefschetz

» Algebraic geometry and topology; a symposium in honor of S. Lefschetz. Edited by R.H. Fox, D.C. Spencer [and] A.W. Tucker for the Dept. of Mathematics, Princeton University