Most Popular Books
- In the Wilds of South America; six Years of Exploration in Columbia, Venezuela, British Guiana, Peru, Bolivia, Argentina, Paraguay, and Brazil
- In The Wilds of South America
- The Hidden People: The Story Of A Search For Incan Treasure (1920)
- In the Wilds of South America; Six Years of Exploration in Columbia, Venezuela, British Guiana, Peru, Bolivia, Argentina, Paraguay, and Brazil