sive emotions; <U>Sidewalks</U>
in keeping pedestrians and children off streets-and cars off the former;
<U>Marriage</U> in stabilizing, reproducing, and subdividing society; <U>Rugs</U>
in simulating grass, creating thermal barriers (conserving heat or coolness),
and stopping sound (perfectirig-privacy); <U>Buildings' foundations</U>
in stabilizing and economizing frames; <U>Spiders' webs</U> in trapping
flying, hopping, and climbing insects who do not notice them or who mistake
them for stems, giving thei