Armchair explorers and scientists will find plenty of interest in this uneven but frequently absorbing collection of true stories. The central theme is man the hunter, the explorer, the roamer, the digger, the incessantly curious seeker after knowledge for its own sake. Andree, who perished in a balloon flight over the North Pole, Lord Carnavon and Howard Carter, who discovered King Tutankhamen's tomb, Roy Chapman Andrews, who found a wealth of fossils in the Gobi, these and others are included. There is in some of the stories a sense of personal participation, shared enthusiasm- while others (the discovery of penicillin, the invention of radar, etc.) seem pedestrian, the elements of mystery and danger missing. As a whole, the collection will appeal to the Walter Mitty in us all.