(2) In the simultaneous method of grading, the plan must be carefully matured, and general coöperation of all assured. The following plan has been tested in more than one school, and found to work successfully: (a) Let a careful committee be chosen to arrange the details of grading. The committee should consist of teachers acquainted with the scholars as far as may be practicable, and should, of course, include the superintendent. They should also take an abundance of time for their work. (b) Obtain the ages of all the scholars between eight and eighteen years of age, and, approximatively, the ages up to thirty. Let this list be made quietly by each teacher for his or her own class. It may be desirable not to inform the pupils for what purpose the enrollment is made. Instances have been known where scholars have understated their ages, hoping thereby to remain with favorite teachers. (c) Let the committee go over the lists and assign the scholars to classes according to age and acquirement. In some degree social relations should be considered, so that each class may be as far as practicable a social unit. In the Intermediate Department boys and girls should be in separate classes, and not more than six or eight pupils should be placed in one class. No announcement of the assignment of scholars to classes should be made until the day fixed for the reorganization of the school. It will be a good plan to prepare a map or chart of the schoolroom, with the place proposed for each class indicated upon it. (d) On the day appointed, after the opening exercises, first let the seats or rooms set apart for the Senior Department be vacated; and then let the roll be called according to the new list. "Class No. 1, Senior Department. Mr. A----, with the following scholars." As their names are called let them take their places, until the list of classes and scholars in this department is filled. Next vacate the seats assigned to the Intermediate Department, and let these teachers and pupils take their places; then the Junior Department, according to the same plan. The Primary Department can be graded by its superintendent or teacher without aid from the committee. Let it be understood that every scholar must take the place assigned to him at the time when his name is called; and that only for an important reason can an assignment, when once made, be changed. In a large school there will be found a few cases where the committee has made a mistake, even with the greatest care; and these mistakes should be rectified, but not until the pupils have taken their new places temporarily in the scheme of the school. 4. =Advantages of Thorough Grading.= Many benefits will follow from the proper organization of the school; and their value will be increasingly apparent as the system is maintained through a series of years.