Dale Husemoller is Professor of Mathematics at Haverford College (PA). Most of his research has been in algebraic topology, homological algebra, and related fields. Together with John Milnor, Husemoller is author of Symmetric Bilinear Forms (Springer-Verlag, 1973). He is also the author of Elliptic Curves (Springer-Verlag, 1987) and cyclic homology (Tata Lecture notes, 1991). Visits abroad include the IHES (Institut des Hautes Etudes Scientifiques) in France, Universit?t Bonne and Universit?t Heidelberg in Germany, ETH in Z?rich, Switzerland, and the Tata Institute of Fundamental Research in Bombay, India.