This book explores how physicists, astronomers, chemists, and historians in the late nineteenth and early twentieth centuries employed 'epistemic virtues' such as accuracy, objectivity, and intellectual courage. In doing so, it takes the first step in providing an integrated history of the sciences and humanities. It assists in addressing such questions as:

What kind of perspective would enable us to compare organic chemists in their labs with paleographers in the Vatican Archives, or anthropologists on a field trip with mathematicians poring over their formulas?