Between 1820 and 1870 a number of influences combined to bring about a radical transformation in the design and use of English organs. This important book provides a comprehensive survey of English organ building during those innovative fifty years in its history. It is richly illustrated with photographs and specially drawn diagrams and contains an invaluable appendix of organ specifications. This is a documentary source book and history that will be indispensable for all those, professionals or amateurs, that have an interest in the organ.