The high school library, although an old institution, is just beginning to "find itself" in the library world of today. It not only has a right to exist but has possibilities for doing important work in the future which will fully justify its existence. It must serve not only as a great laboratory for the work of all departments in the high school but as an important experiment station for all our work with young people of high school age and aid us in the public library's solution of the problem of helping the thousands of boys and girls who leave grammar school and the children's room and go out into the adult room of the large public library with no one to guide them in their explorations among the books, and no one to take the friendly personal interest in them that the teacher and librarian of the children's room always felt. Through the high school library and the public libraries' young people's department of which we dream, we must undertake to "follow up" the work begun in the children's room and build upon the foundations which librarian and teacher have already laid. What are some of the revelations which have been made to those of us who reluctantly undertook this work some eight or ten years ago? In the first place we are, as our high school debaters would say "firmly convinced" of the need of a large carefully selected collection of books within the high school building where they may be had at a moment's notice for reference and reading. We are convinced that we were wrong when in our first enthusiasm over the public library we decreed that the high school library should be limited to books of reference and "required" reading, and that all books to be read for the pure joy of reading should be given over to the public library. For four reasons I would plead today for a large, well equipped library in every city high school, a library managed according to modern library methods and in charge of a trained and experienced librarian who shall be the equal of the high school teachers in broad education and thorough professional training. This librarian must be able to win the confidence and friendship of pupils and teachers and to enter sympathetically into the life of the school. This library may be under the control of the Board of Education or a joint undertaking of Board of Education and public library as in Cleveland, Newark, Passaic, Madison, Wis., and Portland, Oregon.