About Tom Swift, Jr. - Boys’ series of 33 well-written, imaginative science adventure books published from 1954 through 1971. These followed the earlier 1910-4140-volume Tom Swift series, but are NOT revisions/condensations of the earlier series. They are entirely new plots with new characters, but feature some of the family and friends of the earlier series. So the admired and groundbreaking new inventions of the Jr. series are from a much later era, inspired by the space flight advances then in the works, and in the news of the day. #3 in series. Grosset and Dunlap. Copyright 1954. Very good+ to excellent clean, square picture cover book. Minimal wear, but there are hinge tracks beginning to form at both covers. Greyish-blue space lab endpapers. Rear cover lists to #20 Megascope Space Prober (1962). TS3