1. Zaufal's specula, for the examination of the naso-pharyngeal space and the treatment of its diseases Author(s): Prout, J. S. (Jonathan Slater), author Publication: [St. Louis?] : [publisher not identified], [1878?] Subject(s): Nasopharyngeal Diseases -- diagnosisNasopharyngeal Diseases -- surgerySurgical Instruments
2. A new method of controlling the velum palati and enlarging the pharyngo-buccal aperture in rhinoscopic exploration Author(s): Wales, Philip S. (Philip Skinner), 1837-1906 Publication: Washington : Columbian Press, 1877 Subject(s): Nasopharyngeal Diseases -- diagnosisDiagnostic Techniques, Respiratory System