status. One need only think of the advances made possible through the discovery of the incandescent light bulb, of the roentgen rays and of the radio to appreciate their importance to scientific medicine.As one began to realize the clinical value of physical measures it was natural for progressive otolaryngologists not to fall behind. With consideration of the fact that the specialty of otolaryngology is concerned with the entire gamut of infectious, traumatic and neoplastic diseases of the ear, nose and throat, which differ from similar diseases elsewhere in the human economy only in their more difficult recognition and management conditioned by anatomic peculiarities, it was recognized that, once made technically applicable, physical measures should also be employed in its practice. Otolaryngologists have at all times recommended external application of heat as an adjuvant and referred patients with malignant neoplastic disease for radium or roentgen therapy, but between these extreme poles of a household remedy and separate specialistic work comparatively few make systematic use of recognized physical measures in their routine practice.With the recognition of the therapeutic properties of physical agents the industries have produced appliances to meet all special conditions. In other words, just as the instrument maker's art has provided instruments facilitating diagnostic and operative procedures in the deepest