Map shows southern and northern routes across the Atlantic Ocean between Europe and North America with coordinates of points along routes. Includes text, tables, compass, "Proposed New York-Gibraltar steamship routes," "Table of distances in nautical miles, from New York and Boston to Fastnet and Bishops Rock," "Latitudes of Great Circle Intersections on the Porposed Routes," and "Proposed Steamship Routes between New York and the Straits of Gibraltar." Also includes detailed navigational instructions for sailing from New York and Boston to Ireland and the Straits of Gibraltar. Scale not given.

Map shows Europe, the Middle East, and the Mediterranean area at the time of the "Great Invasion," and the barbaric states during the 6th century. Inset: Départ itinéraire et etablissement des Peuples Barbares dans le Grande Invasion [Departure route and establishment of the Peoples in the Great Barbarian Invasion]. Includes notes and dates. Relief shown by hachures. Scale not given.

Map shows the extent of the Roman Empire and other kingdoms and empires in Europe, the Middle East, and northern Africa before the invasion of the Huns. Inset: Arrivée des Huns sur le Danube 376 [Arrival of the Huns on the Danube 376]. Relief shown by hachures. Scale not given.