A practical manual laying out methods, equipment, and organizational principles for successful high-latitude exploration. It covers polar ship construction and ice navigation as well as selection, testing, and management of crews and native helpers. Detailed chapters explain provisioning, depot planning, winter quarters, specialized clothing, sledge design, and techniques for traveling with dogs. The work compares Arctic and Antarctic environments and stresses rigorous field testing, light efficient gear, relay parties, use of beaten trails and igloos on the return, and precise knowledge of the endurance limits of men and animals to ensure safe outward and homeward journeys.