Simple Rules and Problems in Navigation. By Charles H. Cugle. 257 pages with numerous diagrams and tables. The purpose of this book is to lay before the student the rules and problems of navigation found in everyday work at sea. In addition there are examples for practice with their answers, and an abstract from the American Nautical Almanac for 1919 covering various problems. The edition also includes the "International Rule of the Road at Sea"; "A Method of Preparing a Station Bill for Boat and Fire Drill"; and "New Methods of Finding Longitude and Latitude." This book entirely eliminates theory and puts navigation before the ordinary man in a series of practical problems worked out along the lines of the rules given in Bowditch, the American Azimuth Tables, and the American Nautical Almanac.