This volume presents some of the papers from the 15th Mid-America
Symposium on Spectroscopy held in Chicago on June 2-5, 1964. The
Mid-America Symposium is sponsored annually by the Chicago Section of
the Society for Applied Spectroscopy, in cooperation with the St. Louis,
Niagara Frontier, Cleveland, Detroit, Indianapolis, and Milwaukee
sections of the Society and the Chicago Gas Chromatography Discussion
Group. Although basically a regional meeting, the Symposium continues to
draw enthusiastic attendance from coast to coast and numerous foreign
countries. The present volume contains 45 of the 110 papers presented at
the Symposium. It is with some misgiving that we offer this volume as
the proceedings of the meeting with less than half of the total papers
included. However, it is the opinion of the Symposium Committee that
publication of the excellent material available from the Symposium
provides a valuable addition to the literature in the field of
spectroscopy. Response to previous volumes of this series seems to
verify this opinion. As Chairman of the Symposium and Editor of this
volume, I express my sincere appreciation to the authors whose
manuscripts make up this volume. I also extend my gratitude to the
following members of the Symposium Committee whose time and effort made
the 15th Mid-America Symposium a success. Mr. Russell J. Hansen,
Exhibits; Mr. Robert L.