HORWITZ, Phineas Jonathan, surgeon, born in Baltimore, Maryland, 3 March, 1822. He was educated at the University of Maryland and at Jefferson medical college. In 1847 he entered the United States navy as assistant surgeon, and during the Mexican war was in charge of the naval hospital at Tobasco. From 1859 till 1865 he was assistant to the bureau of medicine, and chief of that bureau in 1865-'9. He was promoted surgeon 19 April, 1861, commissioned medical inspector 3 March, 1871, medical director 30 June, 1873, and was retired with the relative rank of captain in 1885. His office as assistant to the bureau of medicine and surgery during the war involved the adjustment of all the pensions that accrued to the wounded and to the widows and orphans of the killed in the navy; the tabulation of medical and surgical statistics; and the general management of all financial matters pertaining to the office. Dr. Horwitz projected and constructed the Naval hospital in Philadelphia.