(3) _Promotions._ There should be annual and simultaneous promotions throughout the school. One Sunday in the year should be set apart as Promotion Sunday; and on that day all promotions should be made. Those who are to be advanced from the Intermediate to the Senior Department are called out by name and placed in their classes, which are not new classes, but old classes replenished with new members. These promotions will vacate the seats of the Fourth Year classes in the Intermediate Department. But these seats will at once be filled by the Third Year now becoming the Fourth Year, and taking their seats; the Second Year pupils becoming the Third Year; and the First Year the Second Year. The First Year of the Intermediate Department will be left vacant, to be filled by promotion of the Fourth Year in the Junior Department, and the moving up of classes to the year above in the same department; and the First Year of the Junior Department will be filled by promotion from the Primary Department. (4) _Teachers._ As groups of scholars pass either from one grade or from one department to another there must also be a change of teachers. This constitutes the crux of the entire system, and in its inception is apt to prove the most formidable obstacle in grading the school. The pupils, however, are accustomed to a system of promotions in the day school, and expect to leave their teachers when they change their grades; but many of the teachers in the Sunday school, not being trained under the system, dislike to lose their scholars, and show their dissatisfaction in ways that affect their pupils. This difficulty must be overcome by tact and an appeal to unselfish motives; teachers must consent for the sake of the common good to give up their old classes and take new ones which begin in the department. The teacher may remain in the grade and receive a new class each year as his pupils advance to a higher grade; or he may remain with the class and advance until the pupils pass from their former department to a higher one, as from Primary to Junior, from Junior to Intermediate, and from Intermediate to Senior. He should then return to a new first year's class in his own department and lead it through the course. If any teacher asks, "Why cannot I go with my class into the Senior Department?" the answer is that if the plan be permitted for one it must be recognized for all; and in the Senior Department there will follow an increasing number of classes, with a relatively diminishing membership in each class. The scholars also need the inspiration of contact with different teachers. Furthermore, the teacher who is adapted to the Junior or Intermediate Department is rarely a suitable teacher for Senior scholars. Hence there is need of a careful assignment of teachers no less than of pupils. Therefore, to maintain a graded school the pupils must change teachers when they change departments.