72 Across the Desert of Fire; or, Frank Reade, Jr.’s Marvelous Trip In a Strange Country.
73 The Transient Lake; or, Frank Reade, Jr.’s Adventures in a Mysterious Country.
74 The Galleon’s Gold; or, Frank Reade, Jr.’s Deep Sea Search.
75 The Lost Caravan; or, Frank Reade, Jr., on the Staked Plains.
76 Adrift in Asia With Frank Reade, Jr.
77 Under the Indian Ocean With Frank Reade, Jr.
78 Along the Orinoco; or, With Frank Reade, Jr., in Venezuela.
79 The Lost Navigators; or, Frank Reade, Jr.’s Mid-Air Search.
80 Six Sunken Pirates; or, Frank Reade, Jr.’s Marvelous Adventures In the Deep Sea.
81 The Island in The Air; or, Frank Reade, Jr.’s Trip to the Tropics.