His account is thorough, based on extensive research in archives and in the considerable literature that has grown up around the canals. A series of appendices give essential figures about costs, traffic statistics and income for the canals at the time of their peak commercial significance. Bücher
His account is thorough, based on extensive research in archives and in the considerable literature that has grown up around the canals. A series of appendices give essential figures about costs, traffic statistics and income for the canals at the time of their peak commercial significance. Bücher