Due to the large number of participants on the program of the Thirty-third Annual Convention of the National Association of Secondary-School Principals, the Proceedings appear as two volumes. This issue of THE BULLETIN, which is the second volume, is a continuation of the Proceedings appearing in the April, 1949, issue of THE BULLETIN. Thus, the April and May, 1949, issues of THE BULLETIN present the complete Proceed ings of the Thirty-third Annual Convention of the National Association of Secondary-School Principals.