A favorite sports writer sets down short biographies, classified in part by types of starts, for another series of diamond dramas bound to have its appeal. There are Shantz and Feller who showed promise almost from infancy, Ruth, Ott and Gehrig who merit chapters of their own, Mantle and Bean among those whose fathers played the game, Wagner and Rizzuto-two famous shortstops, and so on. A sizeable roundup, stocked with sportsmanship.