Samuel-Jeremiah, b. March 22, 1836. He received a good preliminary education, and, in 1853, entered Dickinson College, from which institution he graduated with distinguished honors in 1857. After his graduation, he commenced the study of medicine under his father, and, in 1858, matriculated in the medical department of the University of Pennsylvania, taking his degree as M. D. from that institution in 1860. In the same year, he entered the United States Navy as assistant surgeon, was attached to the United States steamer Minnesota - the flag-ship of the Atlantic squadron - which participated in the battle with the Merrimac, upon which steamer he remained for two years, except when absent as Admiral Goldsborough's staff surgeon at the battle of Roanoke Island, and Admiral Rowan's staff surgeon at the battle of Newbern, when he was promoted to the grade of surgeon. Doctor Jones was United States examining surgeon for the appointment of volunteer medical officers during 1863 and 1864, with his headquarters at Chicago. He was one of the youngest surgeons ever appointed in the United States Navy, being not yet twenty-eight years of age when he received his promotion. When relieved from duty in Chicago, in 1864, he was ordered to New Orleans as surgeon-in-chief of the United States naval hospital at that place, during an epidemic of yellow fever, and as medical purveyor of Admiral Farragut's (blockading) squadron. After the close of the war, he was transferred to the naval hospital at Pensacola, Florida, as surgeon of that hospital, and surgeon of the navy yard at Pensacola. He was also the surgeon of the sloop-of-war Portsmouth, at New Orleans, and of the frigate Sabine the practice ship for naval apprentices on the Atlantic coast. He continued in the naval service until 1868, when he resigned. In that year he was chosen as a delegate from the American Medical Association to the European Medical Associations, which held meettings at Oxford, Heidelberg, and Dresden. The late Professor Samuel P. Gross, with Dr. Goodman, of Philadelphia, and Doctor Baker, of New York, were his associates. He was also, at the same time, commissioned by Governor Geary, of Pennsylvania) to investigate and report upon sanitary matters abroad, in the interest of that State. Upon his return from Europe, he located at Chicago, and commenced a general practice, and was appointed president of the Chicago board of examining surgeons for United States pensions. In 1870, he was appointed professor of ophthalmology and otology in the Chicago Medical College, a chair which had just been established. His studies had been, partly by the natural trend of his mind and partly by circumstances, directed to diseases of the eye and ear, and the call to this chair in the Chicago Medical College determined his life-work. He has held this chair ever since, and after establishing the eye and ear department of St. Luke's Hospital, was appointed attending surgeon of that department, and has held the post for sixteen years. He also established the eye and ear department of Mercy Hospital and of the South Side Dispensary, and was their attending surgeon for ten years. He was also connected, as attending surgeon, with the Illinois Charitable Eye and Ear Infirmary, a State institution, located in Chicago. In 1880, Doctor Jones was elected permanent secretary of the Illinois State Medical Society, to succeed Doctor N. S. Davis, who had held the position for twenty years. He is an active member of that society, of the American Medical Association, American Academy of Medicine, the American Ophthalmological and Otulogical societies, and has been thrice a member of the International Medical Congress; and to these bodies, and to the American Journal of Medical Sciences, and other medical journals, his contributions to the literature of his profession have been chiefly made. A partial list of some of his valuable monographs, in which are condensed the knowledge and discoveries of centuries, and his own addition to that knowledge and those discoveries in his favorite branch of study, are herewith given: "The Present State of Ophthalmology," was delivered before the Illinois Medical Association, in May. 1879. "The Present State of Otology," "A Report on Otology," "Iritis: some of Its Dangers," and "Affections of the Lachyrmal Apparatus," were also delivered before the Illinois Medical Society. "Strabismus: Its Nature and Effect," was contributed to the Chicago Medical Gazette, of January 5, 1880. "On the Introduction of Liquids into the Eustachian Tube and Middle Ear," was delivered before the American Medical Association, at New York, in June, 1880, and "Modifications of the Methods of Treating Chronic non-Suppurative Inflammation of the Eustachian Tube and Middle Ear," was delivered before the International Medical Congress, in 1876. In 1884, his alma mater, Dickinson College, at its one hundred and first annual commencement, conferred upon him the degree of Doctor of Laws, in recognition of his valuable services in medical and surgical science.