* Chinese Paintings (1925)
* The Chinese: A Short History (1930)
* Conversations With Mahatma Gandhi (1932)
* Ten Years of Talks With Bernard Shaw (1941)
* Louis Agassiz As a Teacher (1945)
* Life Stories of the Great Scientists (1947)
* Life, Literature and Learning: A Tribute to Louis Agassiz (1956)
* Letters of a Victorian Naturalist: Louis Agassiz to His Friend Spencer Fullerton Baird (1957)
* The Story of the Constitution of the United States for Young Americans (1958)