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New York: Scholastic Book Services, 1968. 217 pages. Good tight copy. Few creases on cover. From the Publisher: Take cover! The mad, mad, Mad Scientists' Club of Mammoth Falls is back in action. Since the publication of the Bertand Brinley's first book, THE MAD SCIENTISTS' CLUB, strange things have been happening. Mad Scientists' clubs have sprouted up, kids and grownups alike have been eagerly reading these incredible adventures, and the persistent, popular demand has been for more adventures! So our seven young scientists, complete with clubhouse, electronic gear and wild, weird schemes are back again with flying saucers, electronic crime detection, seismographs, rockets, weather control, submarines (for real!) and well, you won't believe it until you read it. Too bad the good and stalwart citizens of Mammoth Falls, university professors, the Air Force and even the Pentagon are sometimes unappreciative of our heroic, creative little group. But then, they were never real scientific geniuses like us, either. . Mass Market Paperback. Good. Illus. by Leonard Shortall, Charles Geer.