A detailed and precisely drawn map of Boston by the Society for the Diffusion of Useful Knowledge (SDUK). This wonderful English enterprise was devoted to the spreading of up-to-date information and the enhancing of understanding. The Society is noted for their excellent maps, in particular their series of city maps of all parts of the world. These maps show most streets and major buildings. This map of Boston is typical of the Society’s output, with clear presentation of much detail of the city. The parks, roads, docks, and roads are shown with good detail, and double lines indicate railroads coming into the city from many points. Outlying towns of Charlestown and Lechmere are separate communities as are East Boston and South Boston. A fine plan of the city from the middle of the nineteenth century.