19 Six Weeks in the Clouds; or, Frank Reade, Jr.’s Air-Ship the “Thunderbolt.”
20 Around the World Under Water; or, The Wonderful Cruise of a Submarine Boat.
21 The Mystic Brand; or, Frank Reade, Jr., and His Overland Stage.
22 Frank Reade, Jr.’s Electric Air Racer; or, Around the Globe in Thirty Days.
23 The Sunken Pirate; or, Frank Reade, Jr., in Search of a Treasure at the Bottom of the Sea.
24 Frank Reade. Jr.’s Magnetic Gun Carriage; or, Working for the U. S. Mail.
25 Frank Reade, Jr., and His Electric Ice Ship; or, Driven Adrift in the Frozen Sky.
26 Frank Reade, Jr.’s Electric Sea Engine; or, Hunting for a Sunken Diamond Mine.
27 The Black Range; or, Frank Reade, Jr., Among the Cowboys with His Electric Caravan.
28 Over the Andes with Frank Reade, Jr., in His New Air-Ship; or, Wild Adventures in Peru.