Educator assembling trove of medical artifacts, documents

Dr. Gerald Tracy, a clinical professor at the Geisinger Commonwealth School of Medicine in Scranton, with an 1892 first edition of ‘The Principles and Practice of Medicine’ by Dr. William Osler. Above, a 1917 letter from Osler, whom doctors today call the ‘father of modern medicine.’ (Butch Comegys/The Times-Tribune via AP)