THE TRAIL OF THE DINOSAUR (253 pp.) Arthur KoestlerMacm/7/on ($3.50).
In a London club not long ago, a doddering ancient buttonholed an odd-looking chap, said to have once been a Hungarian, of all things, who had just written something or other against Communism. "Well, young man, I am glad that at last you have come round to see reason," snuffled the old member. "I myself knew 25 years ago what Bolshevism means, and it's never too late to repent." The younger character was Arthur Koestler, now 50, and he found the old man's attitude highly irritating. U.S. readers who, unlike Arthur Koestler,...