The ten invited papers presented at the Symposium on The Role of Ion Composition in Understanding Magnetospheric Processes, which was held on 11 August 1981 in Edinburgh, Scotland, have formed the principal basis for this book. The symposium was a part of the Fourth Scientific Assembly of the International Association of Geomagnetism and Aeronomy and was convened by the Division III Working Group on Composition of Hot Magnetospheric Plasma under the co chairmanship of Dr. Gerhard Haerendel and myself. The symposium papers have been expanded and are supplemented in this book by several...

Physical and chemical studies of the earth and planets along with their surroundings are now developing very rapidly. As these studies are of essentially international charac ter, many international conferences, symposia, seminars and workshops are held every year. To publish proceedings of these meetings is of course important for tracing development of various disciplines of earth and planetary sciences though publishin, g is fast getting to be an expensive business. It is my pleasure to learn that the Center for Academic Publications Japan and the Japan Scientific Societies Press have...

Physical and chemical studies of the earth and planets along with their sur roundings are now developing very rapidly. As these studies are of essentially international character, many international conferences, symposia, seminars and workshops are held every year. To publish proceedings of these meetings is of course important for tracing development of various disciplines of earth and plane tary sciences though publishing is fast getting to be an expensive business. It is my pleasure to learn that the Center for Academic Publications Japan and the Japan Scientific Societies Press have...

Proceedings of IAGA/IAMAP Joint Assembly, August 22--September 3, 1977, Seattle, Washington, U.S.A.