The work surveys the Arctic's physical geography, sea ice, currents, and prospects for a northern passage, tracing the history of exploration and presenting hydrographic observations. It combines navigational reports, natural history of whales and marine life, accounts of drift-wood and ice movements, and practical discussion of the northern whale fishery and its methods. Detailed observations on currents, ice formation and dissolution, and distribution of marine species support arguments about polar connectivity. The text interleaves scientific measurements, reports from voyages, and considerations of navigation hazards and resources to inform readers about the region's environment and the economics and challenges of whaling and Arctic exploration.