she would never have succeeded in writing a letter the first day. It would have taken weeks to reach that achievement which the simpler method yields almost at once. But in plodding along on this harder road she would finally outdistance the competitor with the commonsense method and would finally gain the highest degree of efficiency. This is exactly the situation everywhere. Commonsense always grasps for those methods which quickly lead to a modest success, but which can never lead to maximum achievement. On the other hand, up to the days of modern experimental psychology the interest was not focussed on the mental operations involved in industrial life as such. Everything was left to commonsense, and therefore it is not surprising that the farmhand like the workingman in the mill has never hit upon the one method which is best, as all his instincts and natural tendencies had to lead him to the second or third best method, since these alone give immediate results. A highly educated man who spent his youth in a corn-raising community reports to me the following psychological observation: However industrious all the boys of the village were, one of them was always able to husk about a half as much more corn than any one else. He seemed to have an unusual talent for handling so many more ears than any one of his rivals could manage. Once my friend had a chance to inquire of the man with the marvellous skill how he succeeded in outdoing them so completely, and then he learned that no talent was involved, but a simple psychological device, almost a trick. The worker who husks the ear is naturally accustomed to make his hand and finger movements while his eyes are fixed on them. As soon as one ear is husked, the attention turns to the next, the eyes look around and find the one which best offers itself to be handled next. When the mind, under the control of the eyes, has made its choice, the mental impulse is given to the arms, and the hands take hold of it. Yet it is evident that these manipulations can be carried on just as well without the constant supervision of the eyes. The eye is needed only to find the corn and to direct the impulse of the hands toward picking it up. But the eye is no longer necessary for the detailed movements in husking. Hence it must be possible to perform that act of vision and that choice of the second ear while the hands are still working on the first. The initial stage of the work on the second ear then overlaps the final stages of the work with the first, and this must mean a considerable saving of time.