This bulletin presents the statistics of public high schools, revealing as far as possible the direct bearing of the data collected on current secondary school problems. To accomplish this end the presentation, necessarily, is divided into two fields: First, that making historical comparisons, and second, that showing present conditions. The first shows trend or evolution; the second, status or accomplishment. The former treatment is limited by the scope of all previous inquiries; the latter, only by the brevity of the statistical schedule now in use. As the statistics of public and private high schools were not tabulated separately previous to 1890, no attempt has been made to antedate this beginning in the establishment of historical trends. Where the statistics of private high schools have been incorporated, their inclusion has been definitely indicated. The basis used in separating the public and private high school is that of control. A secondary school "controlled" by a publicly elected or appointed board of education has been considered as a public high school--all others are private high schools or academies. As the classification adopted may not always conform to the local conception of a public or private high school, some of the schools locally considered as public may have been included in the report on private high schools, or vice versa. As the list of public high schools is very large, the detailed statistics of each school have not been printed. State summaries, however, have been made and grand summaries for the United States. The statistics have been focalized by means of graphic presentations, disclosing important relationships not readily apparent in tabular form. (Contains 95 tables.) [Prepared by the Statistical Division of the Bureau of Education under the supervision of H. R. Bonner, Collector and Compiler of Statistics. Best copy available has been provided.]