These simple studies in this vast field demonstrate little or nothing, but they suggest very much. Slang commonly expresses a moral judgment and falls into ethical categories. It usually concerns ideas, sentiment, and will, has a psychic content, and is never, like the language of the school, a mere picture of objects of sense or a description of acts. To restate it in correct English would be a course in ethics, courtesy, taste, logical predication and opposition, honesty, self-possession, modesty, and just the ideal and non-presentative mental content that youth most needs, and which the sensuous presentation methods of teaching have neglected. Those who see in speech nothing but form condemn it because it is vulgar. Youth has been left to meet these high needs alone, and the prevalence of these crude forms is an indictment of the delinquency of pedagogues in not teaching their pupils to develop and use their intellect properly. Their pith and meatiness are a standing illustration of the need of condensation for intellectual objects that later growth analyzes. These expressions also illustrate the law that the higher and larger the spiritual content, the grosser must be the illustration in which it is first couched. Further studies now in progress will, I believe, make this still clearer. Again, we see in the above, outcrops of the strong pubescent instinct to enlarge the vocabulary in two ways. One is to affect foreign equivalents. This at first suggests an appetency for another language like the dog-Latin gibberish of children. It is one of the motives that prompts many to study Latin or French, but it has little depth, for it turns out, on closer study, to be only the affectation of superiority and the love of mystifying others. The other is a very different impulse to widen the vernacular. To pause to learn several foreign equivalents of things of sense may be anti-educational if it limits the expansion of thought in our own tongue. The two are, in fact, often inversely related to each other. In giving a foreign synonym when the mind seeks a new native word, the pedagogue does not deal fairly. In this irradiation into the mother tongue, sometimes experience with the sentiment or feeling, act, fact, or object precedes, and then a name for it is demanded, or conversely the sound, size, oddness or jingle of the word is first attractive and the meaning comes later. The latter needs the recognition and utilization which the former already has. Lists of favorite words should be wrought out for spelling and writing and their meanings illustrated, for these have often the charm of novelty as on the frontier of knowledge and enlarge the mental horizon like new discoveries. We must not starve this voracious new appetite "for words as instruments of thought."