- The Universe and Dr. Einstein
- The World We Live In, Vol. 1: The First Four Billion Years
- The Treasure of Our Tongue: The Story of English from Its Obscure Beginnings to Its Present Eminence as the Most Widely Spoken Language
- The Wonders of Life on Earth, Vol. 3
- Prehistoric Animals: dinosaurs and other reptiles and mammals. Adapted from the pages of Life