The Putumayo, the Devil's Paradise: Travels in the Peruvian Amazon Region and an Account of the Atrocities Committed Upon the Indians Therein (Paperback)
Sane Sex Life and Sane Sex Living: Some Things That All Sane People Ought to Know about Sex Nature and Sex Functioning; Its Place in the Economy of Li (Paperback)
The Voyage of the Arrow: To the China Seas. Its Adventures and Perils, Including Its Capture by Sea Vultures from the Countess of Warwick, as S (Paperback)
The Story of American Aviation: The Thrilling Story of How the Airplane Grew and the Part It Has Played in the War and Peacetime History of the United (Paperback)
