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ness of a mature person a slumbering knowledge, that is 

 aroused only by the image of the words, so arranged, 

 as to embody the elements, or at least one element, of that 

 knowledge. This sub-consciousness or sub-attention, is 

 the result of former work, in investigation of analo- 

 gous theses, the residuum of education in science. It 

 is evident, that language has evolved from perception 

 and conception. Words symbolize the "pure expe- 

 rience" of the mind. Lower animals reason in their 

 way, and convey ideas without articulate, or written 

 words. But there are forms of reasoning in its higher 

 human conditions, that would seem to be impossible 

 without language, with which to make, and hold, the 

 psychical continuity. It seems that the language suc- 

 ceeds, not precedes, the conception. Some authors 

 contend that "the schematic products of ideational 

 construction," meaning the higher ideas of normative 

 science, cannot be produced without language, as an 

 instrument of analysis, and synthesis. Of course, we 

 could not have any evidence, of the product of any 

 thought, in the brain of another, without the physical 

 marks expressive of those thoughts; and there is no 

 way of expressing the ideational conceptions appar- 

 ently formed in the cerebrum, except by spoken, or 

 written language. The simple ideas of primitive man, 

 confined almost entirely to simple concrete things, no 

 abstractions, could be conveyed by manual signs, and 

 very few short words. But, just as the ideational 

 centers of the cerebrum, and the conceptional psychic 

 phenomena of the human organism, are simultaneous 

 in appearance; so is language simultaneous in evolu- 

 tion, with "the schematic products of ideational con- 

 struction," that is, those ideas which arise in the nerve 

 tissue without external stimulation. We do not, first, 



