Professor George Patrick Leonard Walker was one of the fathers of modern quantitative volcanology and arguably the foremost volcanologist of the twentieth century. In his long career, George studied a wide spectrum of volcanological problems and in doing so influenced almost every branch of the field. This volume, which honours his memory and his contributions to the field of volcanology, contains a collection of papers inspired by, and building upon, many of the ideas previously developed by George. Many of the contributors either directly studied under and worked with George, or were profoundly influenced by his ideas. The topics broadly fall under the three themes of lava flows and effusion, explosive volcanism, and volcanoes and their infrastructure. Related Titles IAV001 Statistics in Volcanology Edited by H M Mader, S G Coles, C B Connor and L J Connor ISBN: 978-1-86239-208-3 Publication Date: November 2006 Pages: 296 Hardback Prices: List $170 Statistics in Volcanology is a comprehensive guide to modern statistical methods applied in volcanology, including forecast of volcanic eruptions, analysis of volcanological data sets, including time series, and assessment of numerical models of volcanic processes. Written for students and researchers in volcanology and statistics, this compilation of 19 chapters provides an overview of state-of-the-art methods that provide clear and robust insight into the nature of complex volcanic processes. Also provided are comprehensive overviews of volcanic phenomena, and a full glossary of both volcanological and statistical terms. Statistics in Volcanology is essential reading for everyone interested in this multidisciplinary field. M0033 The Gregory Rift Valley and Neogene-Recent Volcanoes of Northern Tanzania Edited by J B Dawson ISBN: 978-1-86239-267-0 Publication Date: December 2008 Pages: 112 Hardback Prices: List $130 An account of the structural evolution and volcanism of the Gregory Rift Valley in northern Tanzania over the past eight million years. The volume includes a history of the discovery of the African rift valleys, and is illustrated with colour photos of some of the unique features of Tanzanian geology. SP307 Fluid Motions in Volcanic Conduits: A Source of Seismic and Acoustic Signals Edited by S J Lane and J S Gilbert ISBN: 978-1-86239-262-5 Publication Date: October 2008 Pages: 252 Hardback Prices: List $170 Active volcanoes show characteristic signs, such as ground movement, sounds, heat and ejected material. Each of these signs is a result of fluid motion in volcanic conduits. Here we present recent research on the links between magma flow and geophysical signals, and suggest future directions for the advancement of eruption forecasting. The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society in the world, and one of the largest publishers in the Earth sciences.The Society publishes a wide range of high-quality peer-reviewed titles for academics and professionals working in the geosciences, and enjoys an enviable international reputation for the quality of its work.The many areas in which we publish in include:-Petroleum geology -Tectonics, structural geology and geodynamics -Stratigraphy, sedimentology and paleontology -Volcanology, magmatic studies and geochemistry -Remote sensing -History of geology -Regional geology guides