- The Doctrine of God (1931), Albert C. Knudson
- The Universe Unfolding (1932), Robert H. Baker
- Stars and Atoms (1927), Sir Arthur S. Eddington
- The Universe Around Us, Sir James Jeans
- Through Space and Time, Sir James Jeans
- The New Dictionary of Thoughts
- The Corridors of Time, Harold Peake and Herbert John Fleure
- Men of the Old Stone Age, Henry Fairfield Osborn
- Man Rises to Parnassus, Henry Fairfield Osborn
- The Science of Society (1927), William Graham Sumner and Albert Galloway Keller
- A Harmony of the Gospels for Historical Study (1904, 1932), Arnold Stevens and Ernest DeWitt Burton
- Atlas of the Historical Geography of the Holy Land (1915), George Adam Smith
- The Perfect Calendar for Every Year of the Christian Era (1926, 1927), Henry Fitch
- Dictionary of The Bible (1909), James Hastings
- A Dictionary Of The Bible (1870), William Smith
- The Life and Times of Jesus the Messiah, Alfred Edersheim
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