Inquiry proceeds by reflection, fcy thinking; but not, most decidedly, by thinking as conceived in the old tradition, as something cooped up within "mind." For ex- perimental inquiry or thinking signifies directed activityydoing something which varies the conditions under which objects are observed and directly had and by instituting new arrange- ments among them. Things perceived suggest to us (originally just evoke or stimulate) certain ways of responding to them, of treating them.