The eldest son of Dr Matthias Roth, of Wimpole Street; studied at University College Hospital, where he was House Surgeon under Sir Henry Thompson, and also in Paris, Brussels, Vienna, and Berlin. He joined his father in orthopaedic practice in 1875, devoting himself especially to lateral curvature of the spine, then common among girls and young women. He opposed in particular the treatment by mechanical supports. As regards other orthopaedic conditions he followed his friend, H O Thomas, of Liverpool, attended his clinics, and introduced his splints into London practice. He practised first with his father at 48 Wimpole Street, later at 38 Harley Street, and for twenty-seven years he combined this London practice with one at Brighton, where his addresses were 20 Gloucester Place and Wayside, 1 Preston Park Avenue. He held posts - Surgeon to the Orthopaedic Department of the Royal Alexandra Hospital for Children, and to St John's Convalescent Home for Children at Brighton. Roth was much interested in coins and was Vice-President of the British Numismatic Society and of the Royal Numismatic Society. He also served as JP both for Middlesex and Brighton. After severing his connection with Brighton he had a house at Kingswood, Enfield, Middlesex. He died on March 29th, 1915, having married in 1878 Anna Elizabeth (d 1929), third daughter of the Rt Hon John Bright, MP. She survived him with two children. His son, Paul Bernard Roth, MB, FRCS, followed his father and grandfather in orthopaedic practice. Publications: "Early Treatment of Flat-foot." - *Brit Med Jour*, 1882, ii, 989. "Case of Lateral Curvature of Spine." - *Trans Clin Soc*, 1882-3, xvi, 144. "Two Hundred Cases of Lateral Curvature." - *Brit Med Jour*, 1885, ii, 819. "Scoliosiometry." - *Ibid*, 1888, ii, 927. *Flat-foot*, 8vo, London, 1888. *Curvature of Spine*, 8vo, London, 1889; 2nd ed, 8vo, London, 1899.