With the eompletion of the 14th Annual Mid-Ameriea Speetroseopy Symposium another milestone was passed in the history of a most sueeess- ful endeavor. The Chieago, Cleveland, Detroit, Indianapolis, Milwaukee, Niagara Frontier, and St. Louis Seetions of the Soeiety for Applied Spee- troseopy united to sponsor the finest of the regional meetings for the ad- vaneement of the scienee of speetroseopy. Enthusiastie response was ex- pressed by partieipants, speakers, and interested persons from several foreign eCiuntries, as weIl as eoast-to-eoast in the United States. Sessions on X-ray, infrared, Raman, visible, ultraviolet, nuclear-mag- netie and eleetron-magnetie resonanee, flame, and are-spark speetroseopy eontained interesting arrays of both applied and theoretical papers. Onee again, the closely allied field of gas ehromatography was represented by a session arranged by the Chieago Gas Chromatography Diseussion Group. This present volume, whieh eontinues aseries of Proeeedings initiated in 1961, represents a eolleetion of 32 papers from the Symposium's pro- gram.Providing this material in book form gives a permanent referenee to the attendees and makes the material available to those unable to attend the Symposium. Enough requests for publieation of the Proeeedings have been reeeived to justify the eontinued publieation. The presentation of a symposium of this size and stature is aeeom- plished through the eombined efforts of many people. It is with pride that we aeknowledge the untiring efforts of Stuart Armstrong, Murray Barsky, Vivian Biske, James Burroughs, Audrey Companion, Byron Field, E. L.

With the eompletion of the 14th Annual Mid-Ameriea Speetroseopy Symposium another milestone was passed in the history of a most sueeess- ful endeavor. The Chieago, Cleveland, Detroit, Indianapolis, Milwaukee, Niagara Frontier, and St. Louis Seetions of the Soeiety for Applied Spee- troseopy united to sponsor the finest of the regional meetings for the ad- vaneement of the scienee of speetroseopy. Enthusiastie response was ex- pressed by partieipants, speakers, and interested persons from several foreign eCiuntries, as weIl as eoast-to-eoast in the United States. Sessions on X-ray, infrared, Raman, visible, ultraviolet, nuclear-mag- netie and eleetron-magnetie resonanee, flame, and are-spark speetroseopy eontained interesting arrays of both applied and theoretical papers. Onee again, the closely allied field of gas ehromatography was represented by a session arranged by the Chieago Gas Chromatography Diseussion Group. This present volume, whieh eontinues aseries of Proeeedings initiated in 1961, represents a eolleetion of 32 papers from the Symposium's pro- gram.Providing this material in book form gives a permanent referenee to the attendees and makes the material available to those unable to attend the Symposium. Enough requests for publieation of the Proeeedings have been reeeived to justify the eontinued publieation. The presentation of a symposium of this size and stature is aeeom- plished through the eombined efforts of many people. It is with pride that we aeknowledge the untiring efforts of Stuart Armstrong, Murray Barsky, Vivian Biske, James Burroughs, Audrey Companion, Byron Field, E. L.

With the eompletion of the 14th Annual Mid-Ameriea Speetroseopy Symposium another milestone was passed in the history of a most sueeess- ful endeavor. The Chieago, Cleveland, Detroit, Indianapolis, Milwaukee, Niagara Frontier, and St. Louis Seetions of the Soeiety for Applied Spee- troseopy united to sponsor the finest of the regional meetings for the ad- vaneement of the scienee of speetroseopy. Enthusiastie response was ex- pressed by partieipants, speakers, and interested persons from several foreign eCiuntries, as weIl as eoast-to-eoast in the United States. Sessions on X-ray, infrared, Raman, visible, ultraviolet, nuclear-mag- netie and eleetron-magnetie resonanee, flame, and are-spark speetroseopy eontained interesting arrays of both applied and theoretical papers. Onee again, the closely allied field of gas ehromatography was represented by a session arranged by the Chieago Gas Chromatography Diseussion Group. This present volume, whieh eontinues aseries of Proeeedings initiated in 1961, represents a eolleetion of 32 papers from the Symposium's pro- gram.Providing this material in book form gives a permanent referenee to the attendees and makes the material available to those unable to attend the Symposium. Enough requests for publieation of the Proeeedings have been reeeived to justify the eontinued publieation. The presentation of a symposium of this size and stature is aeeom- plished through the eombined efforts of many people. It is with pride that we aeknowledge the untiring efforts of Stuart Armstrong, Murray Barsky, Vivian Biske, James Burroughs, Audrey Companion, Byron Field, E. L.