Twenty-five years ago the school children used to chant their lessons. The manner of their delivery was a singsong recitative between the utterance of an Episcopal minister and the drone of a tired sawmill. I mean no disrespect. We must have lumber and sawdust. I remember one beautiful and instructive little lyric that emanated from the physiology class. The most striking line of it was this: "The shin-bone is the long-est bone in the hu-man bod-y."