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For arboriculturalists who deal with, or intend to deal with subsidence cases, (especially Local Authorities) will find the science complicated. How can you determine whether or not a tree is causing the building's cracks? This book explains Liquid Limits, Plastic Limits, Plasticity Index, the significance of trees, and other factors that may play a part. It includes case files, and reports, and many scientific diagrams. Although, do not think that this book will answer all your questions. on the contrary, subsidence is a big beast. The fault with this book, should one be critical, was the long-winded answers to some of the questions. For example if you know nothing about subsidence, you will struggle with this book alone. This book is not "Subsidence for beginners" but a valuable resource for someone wishing to become an expert. There are not many alternatives. VERY RARE illustrated paperback book. "Tree Root Damage to Buildings - Volume 2: Patterns of Soil Drying in Proximity to Trees on Clay Soils" By P. G. Biddle, M.A., D.Phil., F.Arbor.A., M.A.E. This is the First Edition, published by Willowmead Publishing Ltd., 1998. This is the second of 2 volumes of this comprehensive guide to identifying & solving the many problems caused by tree root damage to buildings, written by Arboricultural Consultant P. G. Biddle, featuring many actual case studies, and richly illustrated with numerous colour and black & white photographs, drawings, graphs & diagrams. Contents: Introduction. Patterns of Soil Drying in Proximity to Trees on Clay Soils. A study of 60 different trees covering various species and types of soil, including Pruning Experiments, and Soil Profiles. We also have Volume 1 of "Tree Root Damage to Buildings" available, so please check our listings, thank you.