There are many separate groups working in gut biology, and they feel that the gut is an excellent model for investigating general problems in differentiation, growth control, stem cell biology, and regeneration and adaptive responses. There is a pressing need to define the objectives of the next 5 to 10 years, and the meeting, Part III of the Gastroenterology Symposia Freiburg 1996 (Falk Symposium No. 94), held in Freiburg, Germany, October 25-26, brought together some of these groups with a view to identifying areas which are not being utilized and need to be exploited, such as transgenic and knockout approaches, retrovirus delivery systems, and model cell/tissue systems. The main themes of the book are gastrointestinal development and differentiation, gut stem cell biology, and the control of gut growth in normal and abnormal situations. Basic research findings are related to clinical situations, and the book will appeal not only to gut cell and molecular biologists, but also to gastroenterologists interested in the potential applications of these subject areas.

In any histopathology department, cutaneous biopsies form the major part of the workload. In many instances these may be readily dealt with by experienced pathologists and their documentation represents an essential step in organising therapy. However, in a number of areas dramatic changes have occurred in dermatopathology. The rapidly changing incidence of pigmented lesions of the skin and the availability of diagnostic cell markers in the complex cutaneous lymphomas have meant that for many pathologists a review in these fields will be valu- able. The distribution and pattern of skin pigmentation may allow us to make important assertions and draw importantconclusions about the genetics of skin disease, but also about human variability. Cutane- ous vasculitis is a difficult problem where clinicopathological consulta- tion is vital in diagnosis and the review presented has been written with this verymuch in mind. In the same way, many diagnostic difficul- ties exist in assessing buttous lesions in the skin and for this reason a review was invited. Finally, our understanding of certain skin diseases has been radical- ly altered by knowledge of the dynamics of the changes seen, a field which has also beenstudied with advantage inother systemsin patholo- gy. This volume is intended as an aide to those many pathologists and dermatologists who, often together, are responsible for the pro- vision of clinical care in this demanding field. London C. L. BERRY Contents Melanoma and Other Melanocytic Skin Lesions. With 8 Figures D. WEEDON . Cutaneous Vasculitis.

It is easy to be confident that an appropriate body of advice is available to candidates about the content of an examination once you have passed it. Prospectively, the Primary and Final Examinations of the Royal College of Pathologists will appear to most to involve the assimilation of what seems at the time an inexhaustible volume of data, and the recent change in the College examination system has not diminished this concern for the majority of candidates. The guidelines for training for the new Part I examination state that this is the "major hurdle of the MRCPath" and it is clear that it will determine whether candidates are suitable for training which will permit them to practise independently as consultants after Part II. These general aims and objectives do not answer questions such as "How much do I need to know about glomerulonephritis?" or "Where do I stop with the lymphomas?" This text attempts to resolve the difficulty of knowing what standard to aim at, using College questions as its starting point. It concentrates on the essential basis of any single answer; many candidates for the new three-year examination will know more about individual topics than is stated here. However, it is the breadth of information required which is a feature of College examinations and this text should help with this problem.

This book is dedicated to free thinkers and truth seekers with some truly inspirational thought forms which bring questions of existence, religion, belief systems, science and humanity in general to the fore. The author takes you on a personal journey of self seeking questions that all can relate to and offers some insights into the universal questions that we find ourselves asking throughout our lives and the possibility of answering those questions through the journey of awareness into our true inner-selves and how to discover our highest good.