Through the Tropics; or, Frank Reade, Jr.'s Adventures in the Gran Chaco
From Author Wars - https://authorwars.com/books/through-the-tropics-or-frank-reade-jrs-adventures-in-the-gran-chaco-2433252.html
From Author Wars - https://authorwars.com/books/through-the-tropics-or-frank-reade-jrs-adventures-in-the-gran-chaco-2433252.html