In the previous chapter we have given a brief outline of the mechanism of the nervous system from which the student will understand something of the machinery which underlies mind.
Our next step is to try to see how the development of mind follows the growth of the nervous system. Some thing is known of the development of the nervous system and something is known of the development of mind. Our problem is to fit the two together to make as complete a picture as possible. We have two parts to our task: First, a consideration of the facts of nervous system and of mind; second, a consideration of such logical infer ences as may be deduced from the facts. These deduc tions will enable us to form concepts from which further
facts may be predicted. Certain facts of the nervous sys tem enable us to formulate certain concepts in regard to mind and vice versa.