Three, monaural stethoscopes, c. 1840. Left: Ebony Right: Fruitwood
Two binaural stethoscopes, c. 1860. The monaural stethoscope was modified into the binaural type, approximately, 150.
Rene-Theophile-Hyacinthe Laennec (1781-1826), a French internist, made his name immortal by the invention of the stethoscope. Its original form took that of a cylinder of paper. In 1825, a disciple of Laennec, Dr. William Stokes (1804-1878), published his paper 'Introduction of the Use of the Stethoscope', in Dublin.
Two binaural stethoscopes, c. 1860. The monaural stethoscope was modified into the binaural type, approximately, 150.
Rene-Theophile-Hyacinthe Laennec (1781-1826), a French internist, made his name immortal by the invention of the stethoscope. Its original form took that of a cylinder of paper. In 1825, a disciple of Laennec, Dr. William Stokes (1804-1878), published his paper 'Introduction of the Use of the Stethoscope', in Dublin.