On May 15-18, 1961, the 12th Annual Symposium on Spectros­ copy was held in Chicago. Over the twelve-year history of this meeting, it has continually grown and now ranks as one of the major technical meetings in the field of spectroscopy.  Meer

Volume 8 of Developments in Applied Spectroscopy presents a collection of selected papers presented at special symposia and other sessions during the 20th Mid-America Symposium on Spectroscopy, held in Chicago, May 12-15, 1969.  Meer

Volume 10 of Developments in Applied Spectroscopy presents a collection of twenty selected papers presented during the 10th National lleeting of the Society of Applied Spectroscopy held in St.  Meer

Volume 9 of Developments in Applied Spectroscopy pr e­ sents a collection of tventy-three selected papers presented during the 21st Mid-America Symposium on Spectroscopy, held in Chicago, June 2-5, 1970, In general.  Meer

For the last thirteen years, the Chicago Section of the Society for Applied Spectroscopy has sponsored a symposium in the spring of each year. In this span, the symposia have shown a steady increase in attendance, in the number of papers presented, in the number of sessions, and in the number of days the conference lasted.  Meer

With the eompletion of the 14th Annual Mid-Ameriea Speetroseopy Symposium another milestone was passed in the history of a most sueeess­ ful endeavor.  Meer

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.  Meer

This volume presents a collection of papers given at the 16th Mid -America Symposium on Spectroscopy held in Chicago, June 14-17, 1965. The Mid-America Symposium is sponsored annually by the Chicago Section of the Society for Applied Spectroscopy in cooperation with the St.  Meer

Volume 6 of Developments in Applied Spectroscopy presents a collection of twenty-eight selected papers from those that were pre­ sented at the Eighteenth Mid-America Symposium on Spectroscopy held in Chicago, May 15 to 18, 1967.  Meer

Volume 7 of Developments in Applied Spectroscopy is a collection of forty-two papers selected from those that were presented at the 7th National Meeting of the Society of Applied Spectroscopy, held (in place of the 19th Mid-America Symposium on Spectroscopy) in Chicago, May 13-17, 1968.  Meer

Volume 7 of Developments in Applied Spectroscopy is a collection of forty-two papers selected from those that were presented at the 7th National Meeting of the Society of Applied Spectroscopy, held (in place of the 19th Mid-America Symposium on Spectroscopy) in Chicago, May 13-17, 1968.  Meer