1. The Stethoscope and Percussion in the Diagnosis of Diseases of the Chest; also Commentaries on the Same Subjects Selected and Translated from Auenbruger, Corvisart, Laennec, and Others;Forbes,1824
2. Speech and Hearing;Fletcher,1929
3. Ueber eine neue optische Methode, die Schwingungen tönender Luftsäulen zu analysiren;Toepler;Ann. d. Physik u. Chemie,1870
4. On the Amplitude of Sound Waves;Rayleigh,1877
5. On the Intensity of Sound;Wead;Am. J. Sc,1883