The Radio Boys Under the Sea; or, The Hunt for Sunken Treasure

A Boy Crusoe; or, The Golden Treasure of the Virgin Islands

A Chance for Himself; or, Jack Hazard and His Treasure

A Runaway Brig; Or, An Accidental Cruise

A Struggle for a Fortune

A West Point Treasure; Or, Mark Mallory's Strange Find

Bert Wilson, Wireless Operator