This monograph is based upon the proceedings of the Summer Institute, Physics of the Magnetosphere, held on the Boston College campus, lune 19-28, 1967. The pro gram consisted of invited speakers selected by the Editors. An attempt was made to provide comprehensive treatment of all topics of primary relevance to magneto spheric physics, but, of course, some areas received greater coverage than others. The first portion of the conference consisted of tutoriallectures, four each, by five distinguished scientists, and these are presented in Part I of the monograph. The artides appearing in Part I were prepared by the Editors from tapes of the actual lectures. Preliminary manuscripts were prepared and each tutoriallecturer was given the opportunity to make changes or improvements that were incorporated into the final manuscript. H. R. Radoski prepared the lectures of Professor Helliwell; 1. F. McClay prepared the lectures of Professor Dessler and the first two of Professor Dungey; and the remaining lectures of Professors Dungey, Parker, and Van Allen were prepared by me. An effort was made for the most part to write each manuscript in the style of the lectures, but the incongruities of spoken English and the number of scribes in the kitchen undoubtedly limited our success. Everyone knows that English is written far better than it is spoken, although for some reason the spoken word is more dear."

The Theory Institute in Solar-Terrestrial Physics was held at Boston College 19-26 August 1982. The program consisted of a two-week School followed by the first theory conference in the field. This book is based upon the lectures presented at the School. Several years ago there was a convergence of efforts to promote the role of theory in space plasma physics. Reports from the National Academy of Sciences and NASA advisory committees documented the disciplinary maturity of solar-terrestrial physics and recommended that theorists play a greater role in the continued development of the field. The so-called theory program in solar-terrestrial physics was established by NASA in 1979 and implemented in accordance with the guidelines set forth by a panel of scientists, primarily theorists, in the field. The same panel motivated the Boston College program. Published proceedings of the school would provide curricular materials for the training of graduate students in solar-terrestrial physics. J.M. Forbes, T.E. Holzer, A.J. Hundhausen, A.D. Richmond, and G.L. Siscoe were the principal architects of the curriculum of the School, and I am grateful for their contributions. Each also lectured at the School. The chapters in this book were prepared by the authors themselves with one exception. The chapters by Parker are edited reproductions of his lectures. Unfortunately, it is our loss that the lectures of Holzer and Hundhausen are not included in the book.

The Theory Institute in Solar-Terrestrial Physics was held at Boston College 19-26 August 1982. The program consisted of a two-week School followed by the first theory conference in the field. This book is based upon the lectures presented at the School. Several years ago there was a convergence of efforts to promote the role of theory in space plasma physics. Reports from the National Academy of Sciences and NASA advisory committees documented the disciplinary maturity of solar-terrestrial physics and recommended that theorists play a greater role in the continued development of the field. The so-called theory program in solar-terrestrial physics was established by NASA in 1979 and implemented in accordance with the guidelines set forth by a panel of scientists, primarily theorists, in the field. The same panel motivated the Boston College program. Published proceedings of the school would provide curricular materials for the training of graduate students in solar-terrestrial physics. J.M. Forbes, T.E. Holzer, A.J. Hundhausen, A.D. Richmond, and G.L. Siscoe were the principal architects of the curriculum of the School, and I am grateful for their contributions. Each also lectured at the School. The chapters in this book were prepared by the authors themselves with one exception. The chapters by Parker are edited reproductions of his lectures. Unfortunately, it is our loss that the lectures of Holzer and Hundhausen are not included in the book.