Running on the inner track and with the easy narrative of the expert, Roy Chapman Andrews entertains and informs with the achievements and adventures of three Americans who extended man's knowledge and coverage of the globe. He gives the background for Poary's expeditions to Greenland, his assult on the North Pole and attainment of a life ambition, only to face the bitter aftermath engendered by Cook's fraudulent claims. He reveals Carl Akeley as the man who turned taxidermy from ""stuffing"" to an art, who killed a leopard with his own strength, made movies of gorillas, worked toward the accomplishment of African Hall and died in the field. Andrews' own story provides equally impressive reading as he quickly follows his track from his first job at the American Museum of Natural History through the study of whales at sea to his Central Asia Expeditions, where the discovery of Mesozoic fossils and dinosaur eggs opened a new chapter in natural history, on to his directorship of the Museum and present writing carried on in Connecticut and Arizona. Accomplished.