If the school has been properly graded it will include a Teacher-training Class; but under no circumstances should the associate take one of its members as a supply teacher, even for one Sunday. This class should remain untouched by the demand for teachers until its members have completed the prescribed course. If there is a Reserve Class, substitutes should be called from it in some order, preferably alphabetical, so that the same members will not be taken too frequently. Where the Sunday school is held in the afternoon or at noon, the associate can generally provide for needy classes by watching at the morning service for possible teachers. If he is compelled to look for them in the Adult or Senior classes of the school, he should be present early, and if possible obtain his supplies before the opening of the school. If the associate superintendent has done his work, when the lesson begins, every class will have a teacher seated before it, ready for the Bible study. He should never wait until the time for opening the lesson to see what classes need teachers, and then undertake to obtain them by interrupting the teaching in three or four classes and calling for volunteers, while the classes without teachers are listlessly waiting, and valuable time is lost from the half-hour of the lesson period. All this work should be done before the lesson, and, if possible, before the opening of the school. (4) _Assignment of New Scholars._ Another duty of the associate superintendent is to meet new scholars and assign them to classes. For this work he should be present early, meet the scholars as they come, learn who the new scholars are, write down names, places of residence, ages, parents' names, why they come; and prepare material for the card catalogue under the secretary's care. Scholars bringing new members, and teachers into whose classes they may come, should introduce them to the associate superintendent, who should at once take charge of them. No new scholar below the grade of Senior should choose his own class, although his desire to be with friends should be considered, so far as it will not interfere with the established system of classification. Some large graded schools have a temporary class to which new pupils in the Intermediate and Junior grades are assigned for a few sessions until their permanent place can be fixed.