The John P. McGovern Collection on the History of Medicine contains over 5,500 titles focused on the development of the medical specialties in the late 19th and early 20th centuries. There are significant sections on pediatrics, allergy and cardiology. The collection emphasis has been English language materials, but there are also some 18th century titles in French or German. The Collection holds several early anatomical texts, including a first edition of Vesalius’ Anatomica. A special section of the McGovern Collection is devoted to the works of Sir William Osler.