Overview: Additional papers of Harvard History of Science scholar, George Sarton including lecture notes, unpublished manuscripts, correspondence, and other materials.

Overview: Primarily correspondence of historian of science and Harvard professor George Sarton with professional colleagues about the journal Isis.

Overview: Additional papers of the American historian of science, George Sarton. Also some papers concerning George Sarton, assembled by his daughter, May Sarton,

Overview: Diaries and appointment books of the Belgium-born, American historian of science, George Sarton.

Overview: Letters from historian of science George Sarton to American writer and historian of science Dorothy Stimson, and a few other letters to Stimson

Overview: Correspondence of historian of science George Sarton with scientists, inventors, and others.

Overview: Papers of Harvard professor and historian of science George Sarton.