This is the fourth volume in the series "Mathematics in Industrial Prob lems." The motivation for these volumes is to foster interaction between Industry and Mathematics at the "grass roots"; that is, at the level of spe cific problems. These problems come from Industry: they arise from models developed by the industrial scientists in ventures directed at the manufac ture of new or improved products. At the same time, these problems have the potential for mathematical challenge and novelty. To identify such problems, I have visited industries and had discussions with their scientists. Some of the scientists have subsequently presented their problems in the IMA Seminar on Industrial Problems. The book is based on questions raised in the seminar and subsequent discussions. Each chapter is devoted to one of the talks and is self-contained. The chap ters usually provide references to the mathematical literature and a list of open problems which are of interest to the industrial scientists. For some problems partial solution is indicated briefly. The last chapter of the book contains a short description of solutions to some of the problems raised in the third volume, as well as references to papers in which such solutions have been published.

Physics at Surfaces is a unique graduate-level introduction to the physics and chemical physics of solid surfaces, and atoms and molecules that interact with solid surfaces. A subject of keen scientific inquiry since the last century, surface physics emerged as an independent discipline only in the late 1960s as a result of the development of ultra-high vacuum technology and high speed digital computers. With these tools, reliable experimental measurements and theoretical calculations could at last be compared. Progress in the last decade has been truly striking. This volume provides a synthesis of the entire field of surface physics from the perspective of a modern condensed matter physicist with a healthy interest in chemical physics. The exposition intertwines experiment and theory whenever possible, although there is little detailed discussion of technique. This much-needed text will be invaluable to graduate students and researchers in condensed matter physics, physical chemistry and materials science working in, or taking graduate courses in, surface science.

Rewritten and redesigned, this remains the one essential text on the diseases of skeletal muscle.

This book contains the papers presented at a meeting sponsored by the Colloid and Interface Science Group of the Faraday Division, Royal Society of Chemistry, which was held at Wills Hall, University of Bristol from the 14th - 16th April 1997. The pur pose of the meeting, which was entitled Colloidal Dispersions, was to discuss the subject of concentrated colloidal systems including, dispersions, emulsions and powders, in order to emphasize recent advances in experimental and theoretical understanding of these systems and how these advances could be applied to practical utitisation in the wide range of industries which are involved with colloidal systems. The papers presented at the meeting were given by the principal participants in a 5 year project on Colloid Technology, which started on the 1st August 1992, and was funded by the Department of Trade and Industry (DTI) of the U.K. and a consortium of industries which was composed of ICI, Schlumberger, Unilever and Zeneca. The academic centres involved were, the Universities of Bristol, Cambridge, Edinburgh and Imperial College, London. Each of the papers published in this volume formed the focus for a discussion on that topic so that each subject was discussed in so me depth by the participants. J ean Proctor and Meg Staff have been tremendously helpful as secretaries at Bristol and Cambridge respectively throughout the project. Also, their help with the various meetings and with the production of this volume was invaluable. We thank them most warmly for their very able assistance.

Proceedings of the NATO Advanced Study Institute, held in Cetraro (CS) Italy, from 1-12 September 1998