Audiometer curves, fields of hearing, audiograms and other types of charts illustrating in empirical or absolute values the power of hearing, are being discussed more and more frequently in the current journals. Interest in these records is by no means confined to the physiologist and psychologist who are interested in the solution of the problem of "how we hear," but physicists and engineers, railroads, the air service and other types of corporations are forced by necessity to take cognizance of such measurements in making adjustments for their special services. However, the greatest interest in these records and the keenest scrutiny of their context is undoubtedly being shown by otologists. In France, England, Italy and Germany we note that the members of this profession are becoming more interested, not only from the point of view of determining the effects of operative procedure or treatment, but more especially from that of diagnosis.