This volume of the Encyclopædia Britannica provides an exhaustive technical and historical analysis of cartography, surveying, and geography. The text begins with a detailed exposition of maps, mapping materials, and the history of cartography, tracing its development from ancient Egypt and Babylon through Greece, the Middle Ages, and the Arab world, up to the modern era of national surveys and scientific precision.
The author explains the principles of map projections, analyzing both perspective and non-perspective systems, including cylindrical, conical, and azimuthal projections. Each projection is evaluated for its specific mathematical properties and practical applications, whether for navigation, political geography, or regional mapping, with special attention given to the minimization of distortion.
The work also covers the intricacies of scale, orientation, topographical representation, and the selection of names and orthography. Particular emphasis is placed on the methods of relief representation, measuring distance and areas, and the manufacture of globes.
A significant portion of the text is dedicated to the history of cartography, detailing the contributions of prominent figures such as Eratosthenes, Hipparchus, Marinus of Tyre, and Ptolemy. The medieval period is examined through the lens of portolano charts and monastic wheel maps, leading into the revival of Ptolemaic geography during the Renaissance and the subsequent advancements made by Dutch and French cartographers.
The volume concludes with an extensive review of modern topographical surveys across the globe, detailing the triangulation, cadastral mapping, and geodetic operations conducted by various nations up to the early twentieth century. The text serves as an indispensable reference for the principles and evolution of geographical representation.
