At the request of Dr. Charles W. Richardson of the Committee on Survey of Schools for the Deaf, under the auspices of the National Research Council, I undertook to direct the work of examining the children in three public school institutions for the deaf in Chicago: the Parker Practice, the Alexander Graham Bell and the Jacob Beidler schools—290 children. As these examinations were to include physical examinations of the ear, nose and throat, as well as careful functional testing of the ears as regards both the hearing and the vestibular functions, the task was one requiring no small expenditure of time; and to be of any value, the work would have to be done by physicians properly trained to make careful examinations of the ear, nose and throat, and especially to carry out intelligently the various functional tests of the auditory function, as well as of the vestibular mechanism.