2 · The Sunken Isthmus; or, With Frank Reade, Jr., in the Yucatan Channel, with His New Submarine Yacht the “Sea Diver” [Frank Reade, Jr.] · Noname · nv
2 · The Transient Lake; or, Frank Reade, Jr.’s Adventures in a Mysterious Country with His New Air-Ship, the “Spectre” [Frank Reade, Jr.] · Noname · nv