Mapping Boston goes well beyond geography and incorporates sociology, anthropology, political science, economics, and ecology in providing a compelling history of not only Boston and its growth, but of land-making, map-making, and publishing. With the help of an abundance of maps, engravings, paintings, photographs, and essays, Mapping Boston introduced me to many new concepts (such as “wharfing out,” the process of building wharves and later filling in the slips between to extend the coastline outward), more precise usages of cartographic (and cartographic-adjacent) terminology, cartographic techiques and navigational tools and their functions, and tidbits regarding variants of currency and standard trade discounts provided to map-sellers. There was a particular pleasure to learning about familiar streets and locales and the specific contexts which led to their development, just as there was to gaining an understanding of how curious current-day circumstances came to be and to learning about now-buried (or otherwise removed) geographical features and how they related to the known aspect of Boston.
Mapping Boston establishes early on the inflection points in Boston's history and its geography (the growth of its landmass reflecting times of prosperity), and this framework is the backdrop for all of the changes that are evident as one progresses through its pages. The fact that Boston comprises so much made land makes for one of many significant factors whose change is compelling to observe over time, and one can not only track the changes in the landforms themselves, but also in the refinement of the theoretical underpinnings of the maps, such as increasingly sophisticated projections and the development of better, more formal definitions such as that of longitude and its calculation; one also gets to see how the names assigned to places shift over time, and, as a result, to observe both the etymologies of familiar place names and the passage of territories from one people to another. The technology of mapmaking can be seen developing, too, along with the technology reflected in the maps, in the form of railroads, highways, and so forth. Layouts such as one comparing a two block–by–two block area on four different fire-insurance maps provide opportunities to track changes on a granular level, both in scope and in detail, as the changes in businesses on the blocks and the construction materials used in the blocks’ buildings can be seen across a span of 71 years.
The research and precise matching that made that possible—and the specificity of the result—is characteristic of the attention paid to details throughout the book, both in terms of how many are included and how carefully they are presented. The level of detail in the captions and the vignettes (which give helpful context to what is going on at a specific point of time or in an era more broadly) accompanying the maps matches that of the maps themselves; even there, outside of the primary essays that ostensibly constitute the main text of the book, all sorts of information is incidentally introduced, such as references to the renaming of streets, conventions of the map-making and map-selling trades, and little morsels such as the path along with map plates passed between publishers. The commitment to detail extends to additional material provided in the form of a timeline of Boston land-making, a chronology of Boston history relevant to its geography (including annexation of towns, construction of notable buildings, population growth, demographic changes, and historical milestones), and a very helpful and thorough glossary.
The authors are completists in crediting, and providing biographical details about, map-makers in the broadest sense, not only the cartographers, strictly speaking, but the editors, engravers, printers, compilers, and publishers. And rightly so, since, for all that information is provided in depth and abundance—and in an abundance of forms—in this wonderfully packaged volume, the gorgeous maps themselves are unquestionably the stars and provide the primary joy in the experience of reading Mapping Boston. I took such a simple pleasure in following along as the information portrayed becomes better and more specific, and at noticing names and conventions and styles going in and out of common usage (even a 1948 map, despite the disappointment of an increasingly utilitarian approach to mapmaking, still retains some stark beauty in its simplicity and its characteristic midcentury modern typeface). In their most ornate forms, the maps have a beauty and craft that extends beyond their primary portrayals to the cartouches or engravings (such as of significant buildings) around the edge that embellish them; flair is brought even to such details as the marking of a distance to define a map's scale, which in one case is positioned between the tips of a depiction of calipers. Many of the maps are neat examples of physical artifacts as well, such as maps designed to be overlays showing various stages of battles and maps appended with literal attachments to create a literal version of an inset by way of two distinct pieces of paper in combination. Pleasingly, Boston's proximity to water allowed for numerous examples of what were my favorite inclusions, hydrographic charts with all sorts of details—shoreline profiles, shoals, banks, channels, mudflats, currents, sailing directions, and a virtual web of minuscule depth soundings (a sort of counterpart to the nearly-as-pleasing reticulated extensions of compass roses that I always liked to see featured).