• Catholic Churchmen in Science [First Series]: Sketches of the Lives of Catholic Ecclesiastics Who Were Among the Great Founders in Science
• Education: How Old The New
• Health Through Will Power
• Makers of Modern Medicine
• Medieval Medicine
• Old-Time Makers of Medicine: The Story of The Students And Teachers of the Sciences Related to Medicine During the Middle Ages
• Religion And Health
• The century of Columbus
• The Popes and Science: The History of the Papal Relations to Science During the Middle Ages and Down to Our Own Time
• The Thirteenth, Greatest of Centuries