21. As soon as the type has been set up, the paper is flattened out and laid ready to hand, that nothing may impede the process of printing. Similarly, a teacher should place his pupils in front of him that he may see them and be seen by all. This we have already shown in chap. xix. Problem 1.
22. The paper is damped and softened, that it may be better fitted to receive the impression of the type. Similarly the pupils in a school must continually be urged to attend, as we have already explained.
23. When this has been done, the type are inked, a distinct impression may be taken from them. Similarly, the teacher makes the lesson vivid by means of his voice, reading it over and explaining it, that all may understand.
24. The paper is then put into the press, one piece after the other, that the metal type may impress their form on each and every sheet. Similarly, the teacher, after he has explained a construction, and has shown by examples how easily it can be imitated, asks individual pupils to reproduce what he has said, and thus show that they are not merely learners, but actually possessors of knowledge.
25. The printed sheets are then exposed to the wind and are dried. Similarly, in school, the intellects of the pupils are exposed to the bracing influences of repetition, examination, and emulation, until it is certain that the lesson has been thoroughly learned.
26. When they have passed through the press, the printed sheets are all taken and arranged in order, that it may be seen if the copies are complete and without defects, and are therefore fit to be bound, sold, and used. The same function is performed in schools by the examination at the end of the year, when the progress of the pupils, and the thoroughness and comprehensiveness of their training, are investigated by the inspectors; the object being that these latter may certify that the subjects appointed have been properly learned.
27. So far we have confined ourselves to generalities, reserving our detailed investigation for a more suitable
