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The Espionage Omnibus Collection: 17 Captivating Secret Service Fiction Books - Seventeen Classic Secret Service Tales of Codes Sabotage and Wartime Intrigue
Melville Davisson Post, J. W. Duffield, John Henry Goldfrap, Victor Bridges, Ambrose Newcomb, E. Everett Evans, Valentine Williams, Lewis E. Theiss, G. Harvey Ralphson, Frank Walton
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The Ultimate Submarine Compendium: 36 Captivating Reads - Undersea Adventures Naval History Invention and Wartime Tales from the Victorian Age to World War I
Edward Stratemeyer, H. Irving Hancock, A. Hyatt Verrill, Roy Rockwood, Percy F. Westerman, James R. Driscoll, Victor G. Durham, Donald Grayson, Jules Verne, Thomas W. Corbin, A. Frederick Collins, Luis Senarens, Harold Wheeler, Willis J. Abbot, Robert Fulton, John Blaine, Freiherr von E. Spiegel, T. D. Hallam, Charles W. Domville-Fife, Ajax, Charles William Sleeman, Georg-Günther Freiherr von Forstner, William Barclay Parsons, Herbert C. Fyfe, G. Harvey Ralphson, Elmer Tracey Barnes, Clair W. Hayes, Virgil D. Collins, Farnham Bishop, Henry John Sir Newbolt, Paul König
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The Grand Library of Treasure Hunts: A 45-Book Collection - Forty-Five Classic Quests of Lost Maps Hidden Treasure Sea Peril and Frontier Adventure
L. Frank Baum, Ralph Delahaye Paine, James Otis, Edward Stratemeyer, Upton Sinclair, Victor Appleton, G. A. Henty, William MacLeod Raine, Laura Lee Hope, Roy J. Snell, Charles Gilson, George Manville Fenn, John Henry Goldfrap, Harry Castlemon, Richard Le Gallienne, Capwell Wyckoff, Percy F. Westerman, Rupert Sargent Holland, Frank V. Webster, James R. Driscoll, Harold L. Goodwin, J. T. Trowbridge, Paul Hutchens, Ross Kay, Walter Walden, Leo E. Miller, Andrew Jackson Howell, John Maxwell Forbes, Camilla Kenyon, Arthur D. Howden Smith, Grace Brooks Hill, Gerald Breckenridge, G. Harvey Ralphson, Elliott Whitney, Spencer Davenport, Jean L. McKechnie, Horatio Jr. Alger
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The Airship Inventor's Library: 33 Essential Reads - Pioneering Flight Memoirs Airship Engineering and Edwardian Adventures of the Aerial Age
Thomas Herbert Russell, Octave Chanute, Victor Appleton, Roy Rockwood, John Henry Goldfrap, Howard Roger Garis, George Whale, Alberto Santos-Dumont, Stanley R. Matthews, Clarence Young, Percy F. Westerman, Frank V. Webster, H. L. Sayler, Richard Bonner, F. S. Brereton, William J. Jackman, Harry Vissering, Hugh McAlister, De Lysle F. Cass, G. Harvey Ralphson, Frank Cobb, Edwin Green, E. Douglas Fawcett
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Boy Scouts in a Submarine; Or Searching an Ocean Floor - Dive into the Undersea World with Brave Boy Scouts
G. Harvey Ralphson
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Boy Scouts in an Airship; Or The Warning from the Sky - A Sky-High Adventure of Scouts and Airship Warnings
G. Harvey Ralphson
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Boy Scouts on the Open Plains; Or The Round-Up Not Ordered - Journey of Bravery and Camaraderie in the American Wild West
G. Harvey Ralphson
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Boy Scouts in the Northwest; Or Fighting Forest Fires - Bravery in the Flames: A Forest Fire Adventure
G. Harvey Ralphson
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The Call of the Beaver Patrol; Or A Break in the Glacier - Survival and Friendship: A Glacier Expedition Adventure
G. Harvey Ralphson
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Boy Scouts in the Philippines; Or The Key to the Treaty Box - A Scout's Diplomatic Adventure in the Philippines
G. Harvey Ralphson
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Boy Scouts in Southern Waters; Or Spaniard's Treasure Chest - Secrets of the Deep: A Boy Scout Adventure
G. Harvey Ralphson
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Boy Scouts on Motorcycles; Or With the Flying Squadron - An Action-Packed Adventure with Boy Scouts on Motorcycles
G. Harvey Ralphson
