While, however, right-handedness is no mere acquired habit, but traceable to specific organic structure, the opinion has been already expressed that it is only in a limited number of cases that it is strongly manifested. The conclusion I am led to, as the result of long observation, is that the preferential use of the right hand is natural and instinctive with some persons; that with a smaller number an equally strong impulse is felt prompting to the use of the left hand; but that with the great majority right-handedness is largely the result of education. If children are watched in the nursery, it will be found that the left hand is offered little less freely than the right. The nurse or mother is constantly transferring the spoon from the left to the right hand, correcting the defective courtesy of the proffered left hand, and in all ways superinducing right-handedness as a habit. But wherever the organic structure is well developed the instinctive preference manifests itself at a very early stage, and in the case either of decided right-handedness or left-handedness, it matures into a determinate law of action, which education may modify but cannot eradicate. My colleague, Professor James Mark Baldwin, has followed up my own researches by instituting a systematic series of experiments on his infant daughter, extending over nearly the whole of her first year, with a view to ascertaining definitely the time at which the child begins to manifest any marked preference for either hand. As a specialist in the department of psycho-physics, he carried his inductive research beyond the range embraced in the present treatise; dealing with the question of feelings of efferent nervous discharge or innervation, the motor force of memories of effortless movement, and other conceptions of the psychologist which lie outside of the simpler issue under consideration here. Yet they naturally follow from it; for so soon as volition comes into conscious play, and the hand obeys the mind, and becomes an organ of the will, the psychical element is felt to dominate over the physical; including that very force of will which aims at eradicating the exceptional left-handedness, and enforcing an undeviating submission to the law of the majority.