During his remarkable lifetime, Harold Gatty became one of the world's great navigators (in 1931, he and Wiley Post flew around the world in a record-breaking eight days) and, to the benefit of posterity, recorded in this book much of his accumulated knowledge about pathfinding both on land and at sea. Applying methods used by primitive peoples and early explorers, the author shows how to determine location, study wind directions and reflections in...