It is of interest from time to time to make studies or have studies made of the various ranks of the superintendency. One type of the superintendency, which is all in all the oldest and is found in every State, is the county superintendent of schools. He exists in more than 3,300 places. The return accompanying this blank was able to get a line on him from more than 2,000 places. It showed his age and marital status, educational experience, and the grades in which he had previously taught, the degrees held, and the like. In October, 1928, the Office of Education sent out to each county school superintendent or comparable officer in the United States an inquiry blank seeking certain information. This list included, besides the officers specifically designated as "county superintendent," the "division superintendent" of Virginia (outside those in charge of city systems), the "district superintendent" of New York, the "deputy superintendent" of Nevada, and the "union superintendent" of the New England States. This bulletin contains the following: (1) Letter of transmittal; (2) The adequacy of the data; (3) Sex, age, and marital condition; (4) The professional equipment of the county superintendent; (5) In-service growth of county superintendents; (6) Salaries; (7) Some aspects of the working conditions of county superintendents; and (8) Some implications of foregoing data. A bibliography is included. (Contains 28 tables.) Individual sections contain footnotes. [Best copy available has been provided.]