The _Plan_ requires that the seven grades of the school meet in separate rooms, and that a teacher be provided for each grade. In each class, the text-books must be adapted to the capacities of the children. The Vestibulum is the lowest class. Over the door of this room is the motto, “Let no one enter who cannot read.” The room is so decorated that the pictures illustrate the subjects taught in this grade; and, by means of these illustrations, the senses are trained. The pupils are taught short maxims containing the most important rules of conduct, a few common Latin words, the elements of arithmetic, the scales in music, and some short hymns and prayers. Writing and drawing are also taught, and special attention is given to the games of the children. The Janual is the second class. The motto over the class-room door of this grade is, “Let no one enter who is ignorant of mathematics.” Provided the more common objects mentioned in the _Janua_ cannot be readily obtained, pictures of these objects are hung on the wall. The text-books used are, besides the _Janua_, the Latin vernacular dictionary and the Janual grammar. In composition, the pupils are exercised in the structure of phrases, sentences, and periods; in religion, they learn the catechism; in mathematics, addition and subtraction and plane figures in geometry. There are more advanced exercises in music; and, as in the preceding grade, the teachers are urged to encourage the plays and games of the children. The Atrial is the third class. Its motto is, “Let no one enter who cannot speak.” Here Bible readings, in abridged form and suited to the intelligence of the children, are begun. The text-book is the _Atrium_, together with a grammar of eloquence and a Latin-Latin dictionary. In arithmetic, the pupils master multiplication and division, and in geometry, solid figures. The musical instruction includes harmony and the rudiments of Latin verse. Famous deeds in Biblical narrative furnish the basis of the historic instruction. In composition there are exercises in style, consisting of paraphrasing and the transposition of sentences. Before the pupils are permitted to pass from this grade they must be able to read the Latin authors readily and to converse in the Latin fluently.