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.
29 Frank Reade, Jr., Exploring a Submarine Mountain; or, Lost at the Bottom of the Sea.
30 Adrift in Africa; or, Frank Reade, Jr., Among the Ivory Hunters with His New Electric Wagon.
31 Frank Reade, Jr.’s Search for a Lost Man in His Latest Air Wonder.
32 Frank Reade, Jr.’s Search for the Sea Serpent; or, Six Thousand Miles Under the Sea.