by Roy Blount, Jr.Knopf, $10.95. Not the kind eaten or pulled, but those inhabiting Georgia, with special emphasis on the Carter brand. Mr. Blount claims to be a cracker himself, and to have decided in early youth, “We are outlandish!” It has since struck him, “So is the rest of America.” True enough, but these records of crackers in full cry prove that the rest of the country is outlandish in a comparatively feeble way. The book will make the grimmest Yankee hoot with laughter.