1. Photographs: the gray substance of the medulla oblongata trapezium Author(s): Dean, John, 1831-1888 Publication: [Washington, D.C.] : [Smithsonian Institution], 1864 Subject(s): Medulla Oblongata -- anatomy & histologySpinal Cord -- anatomy & histologyAnatomy, Comparative
2. The gray substance of the medulla oblongata and trapezium Author(s): Dean, John, 1831-1888 Publication: [Washington : Smithsonian Institution, 1864] Subject(s): Medulla Oblongata -- anatomy & histologySpinal Cord -- anatomy & histologyAnatomy, Comparative
