lations, it will give less attention to those which have a direct and legitimate interest for itself.” Granville says: “The defects of most methods which have been devised and employed for improving the memory, lies in the fact that while they serve to impress particular subjects on the mind, they do not render the memory, as a whole, ready or attentive.” Fuller says: “Surely an art of memory may be made more destructive to natural memory than spectacles are to eyes.” These opinions of the best authorities might be multiplied indefinitely—the consensus of the best opinion is decidedly against the artificial systems, and in favor of the natural ones.
Natural systems of memory culture are based upon the fundamental conception so well expressed by Helvetius, several centuries ago, when he said: “The extent of the memory depends, first, on the daily use we make of it; secondly, upon the attention with which we consider the objects we would impress upon it; and, thirdly, upon the order in which we range our ideas.” This then is the list of the three essentials in the cultivation of the memory: (1) Use and exercise; review
