The London Stamp Exchange, rep., 1990. Viii + 48 pp. D.j., 22 x 14cm. FINE. Much was written immediately following the Great War about the contributions of organisations such as regiments, banks and shipping lines, but what was not so easy was to approach the subject from the other side and to ascertain, for any given event of the War, which particular formations were involved. Here is a book which solves just that problem. It presents a chronological survey of the part played by formations down to Brigade level throughout the War. Names, dates and the boundaries of actions follow the framework laid down by the Battles Nomenclature Committee of 1921. To trace the participants of just one battle would be a mammoth task. That the author records such detail for the entire war shows the value of this book.