Authors
- The Dominion of the Air - The Story of Aerial Navigation
- International Finance
- Putnam's Word Book
- American Encyclopedia - History, II
- Successful Stock Speculation
- American Encyclopedia - Biography
- Elements of Foreign Exchange
- American Encyclopedia - History, I
- A History of Science, I - The Beginnings of Science
- A History of Science, II - The Beginnings of Modern Science
- The Eastern Empire to the Twelfth Century
- CHAPTER XVIII. AIRCRAFT AND NAVAL OPERATIONS
- Hernando Cortez
- IX. THE NEW SCIENCE OF EXPERIMENTAL PSYCHOLOGY
- Daniel Webster
- CHAPTER IV. THE DEVELOPMENT OF THE ART
- CHAPTER I. THE BIRTH OF THE TELEPHONE
- William Penn
- XI. A RETROSPECTIVE GLANCE AT CLASSICAL SCIENCE
- I