35 Lost In the Atlantic Valley; or, Frank Reade, Jr., and his Wonder, the “Dart.”
36 Frank Reade, Jr.’s Desert Explorer; or, The Underground City of the Sahara.
37 Lost in the Mountains of the Moon; or, Frank Reade, Jr.’s Great Trip with the “Scud.”
38 Under the Amazon for a Thousand Miles.
39 Frank Reade, Jr.’s Clipper of the Prairie; or, Fighting the Apaches in the Southwest.
40 The Chase of a Comet; or, Frank Reade, Jr.’s Aerial Trip with the “Flash.”
41 Across the Frozen Sea; or, Frank Reade Jr.’s Electric Snow Cutter.
42 Frank Reade Jr.’s Electric Buckboard; or, Thrilling Adventures in North Australia.
43 Around the Arctic Circle; or, Frank Reade Jr.’s Famous Flight With His Air Ship.
44 Frank Reade Jr.’s Search for the Silver Whale; or, Under the Ocean in the Electric “Dolphin.”