The public library needs the school library, among other reasons, to bring it into closer contact with the school system officially. The public library, it seems to me, should require the high school librarian to attend its regular staff meetings if she be a public library official or invite her to attend them if she is not. The high school librarian in many cases attends school faculty meetings, and by regularly attending public library staff meetings she can intelligently interpret school to public library and vice versa. The public library needs the high school library so as to get earlier and more certain information of books needed for class use, for the purpose of reserving in the public library or of concentrating them in the school library. Six copies of a title concentrated at call in the high school library and lent from there for short loans, prevent a few students from monopolizing books, and so do much more satisfactory work than twice the number lent from the public library in the usual way. In general, the public library by working through the high school library should work more effectively by meeting the school on its own ground. It is pretty clear, I think, that the school library and the public library need each other. The questions remaining are: What kind of co-operation is most effective? How can that co-operation be brought about? I doubt if there is a universal answer for either question. I think that local conditions will have to be studied in each case, and under local conditions I include the school situation, the public library situation, personalities, local politics, etc. Miss Hall has found a satisfactory answer for the library controlled by the school. The solution which has come under my observation is the administration of the school library by the public library, with a division between school and public library, of the expense. This plan in one form or another is now being tried with the high school libraries in five cities--Cleveland, O.; Madison, Wis.; Newark, N. J.; Passaic, N. J.; and Portland, Ore. This includes eleven libraries actually in operation, and five others in contemplation. The plan has also been adopted, I am informed, by a number of towns in New Jersey. In bringing about co-operation, the first step is to make a careful, thorough study of conditions, not forgetting the questions, "What is the attitude of the principal?" and, "Which can pay the higher salary--public library or high school?" The results under any plan, may we add, depend on the high school librarian. She should have a college education to put her on a par with the teaching staff. She must be adaptable. She must have solid book knowledge, especially of English and history. She must be able to manage a room full of students without fuss or strain. A raw high school graduate with a smattering of technique will not do.