This volume, which began as a memorial to a pioneering scientist of another age, has become a memorial also to two scientists of our own day, Harry Wexler and Edward C. Thiel, each of whom has made significant contributions to our increased understanding of Antarctica. In his past activities as Chief Scientist for the U.S.-IGY Antarctic Program, Harry Wexler served as an inspirational force through his all-encompassing scientific interest and his great love for Antarctica. He continually stressed the broad view and the interdisciplinary aspects of the program; this was his guide in organizing the Symposium. As Convener and as Chairman of the sessions on meteorology, oceanography, and glaciology, Harry Wexler encouraged a full and complete discussion of the many interesting subjects reported in this volume. Ed Thiel, through his dedicated and thorough exploration of Antarctica, has left his stamp not only on this volume, but in his many other works in which Antarctica has been unveiled and explained.