Fonds consists of correspondence with the Canadian Medical Association and its professional journal. Other contents include manuscripts of papers and addresses in addition to original copies of publications by Dr. Hattie. Fonds also contains several obituaries from different sources as well as a letter from Sec. Graduates of McGill University H.C. Pruell, (dated March 10, 1897) and a letter from Sir J.W. Dawson (dated March 20, 1897).