The "smartie" and the joker types are thorns in the flesh. Just as thorns when pressed in too deeply require a surgical operation to remove them, so it may be necessary for the Teacher to "sit on" both the "smartie" and the joker. If the other boys of the class make up their minds to unite in the task, both the "smartie" and joker will become normal boys in less than one season's activities, and the Teacher will show his generalship to be of the real sort by enlisting the other boys to do the job. THE ECHO OR SHADOW TYPE The echo or shadow type is a serious problem. He it is who generally hinders the good things in life and helps the bad. He can swear by the ward boss in party politics, or he can prove himself an obstacle in the way of civic and national righteousness. The Teacher's task in his case is to somehow or other strike the cord of independence, teach him to do things by himself, think for himself and stand on his own feet. Along the coasts of the North Sea, they teach boys to swim by throwing them out beyond their depth. It may be necessary to awaken manhood and independence in the echo by swamping him when he is alone. THE BULLY The bully will be the worst type for the Teacher until the right boy comes along; there is no use in the Teacher worrying himself until he does, because of the bully's bluster and bluff. Usually the normal boy will accept him at his face value, and it is only when a lad with self-assertion comes along that the sparks will fly. Then the bully will have to back down or take his medicine. A fight between boys is usually not a good thing, but when it comes to putting the bully in his place it is one of the greatest institutions that the savage man has invented. Once a bully has lost his place, he may bluster, but his bluff is over. THE QUIET OR RETICENT BOY The quiet or reticent fellow is like the mighty sweeping river. He has depths which have been unsounded, and his life has promise of great possibilities. Just the opposite of the bully, he never blusters but thinks out everything as it comes to him. Every impression is stored away and out of the countless impressions which are made upon him there emerges a man of real and wide interests. The task of the Teacher in his case will be to discover his interests and help him to discover himself. THE GIRL-STRUCK BOY