Admirers of Mrs. Burnett's "The Good Wolf'' will welcome a continuation of many of its characters in "Barty Crusoe," together with a host of new ones, such as the little monkey, "Saturday," the "Perfectly Polite Pirates," and their preceptor, "Baboo Bajorum," a gorilla who made them polite! Imagine a small boy who, reading "Robinson Crusoe," was able immediately to test some of the adventures through the kindly aid of the '' Good Wolf!''