#16. Maps.#--If a school can have but one map, let it be the map of Palestine. Then add the following maps, in the order named: Bible Lands; a second map of Palestine,--one for Old Testament and one for New Testament; Paul's missionary journeys; a missionary map of the world; a missionary map of the denomination. A sand map is good for use in the later elementary grades, but should not wholly displace the wall map. #17. Charts.#--Many helpful charts are now prepared for Sunday-school use; charts of the life of Christ, charts for missionary purposes and temperance teaching, charts with choice passages of Scripture and hymns. #18. Libraries.#--If possible, have two libraries, one for teachers, one for scholars. A teachers' library should contain Bible-study helps and books for Sunday-school workers, which treat of special phases of Sunday-school work. The scholars' library should be properly classified so that the members of all departments will feel an equal interest in it. #19. Missionary Curios.#--Material aid in creating missionary interest will be secured by showing woods, stones, plants, flowers, clothing, and birds from the various foreign fields, and by the use of pictures and models of their buildings, which reveal the customs of the lands under consideration. These things are abundant, and are comparatively inexpensive. #20. Flags and Banners.#--Every school should have the flag of the nation displayed at each session. Many schools use the Christian flag, also, made of white silk with a blue field and red cross. The "Conquest Flag" is also popular. Banners for Star Classes, Excelsior Classes, Honor Classes, etc., are desirable if properly used. Considerable school spirit may be cultivated by having school colors embodied in a pennant, which is always displayed when the school is in session. #21. Objects.#--Many objects are now prepared that are valuable in Sunday-school work, such as building blocks, models of the Tabernacle, globes, and birthday banks. #22. Bibles and Music Books.#--Every member of the school who is old enough to read should bring his own Bible. Nevertheless, it is well to have a supply of school Bibles, as they should be used in the school instead of lesson helps. Select a good music book, and get plenty of copies. If every member has a book, the singing and the order will be better. Hymn banners and song rolls are useful adjuncts. #23. Pictures.#--Choice pictures are not only beautiful, but valuable in many ways. The walls of the Sunday-school room, and especially of the elementary departments, should be well decorated with choice inexpensive pictures, illustrating various Bible scenes; there may also be miscellaneous pictures of an equally elevating and refining character. #24. Stereopticon.#--Here and there a school is able to have a stereopticon or magic lantern. This instrument is becoming more popular every day. If properly used, a stereopticon is very helpful in Sunday-school work.