There have been many theories advanced, and explanations offered to account for the fact that the recollection of names is far more difficult than any other form of the activities of the memory. We shall not take up your time in going over these theories, but shall proceed upon the theory now generally accepted by the best authorities; i.e. that the difficulty in the recollection of names is caused by the fact that names in themselves are _uninteresting_ and therefore do not attract or hold the attention as do other objects presented to the mind. There is of course to be remembered the fact that sound impressions are apt to be more difficult of recollection than sight impressions, but the lack of interesting qualities in names is believed to be the principal obstacle and difficulty. Fuller says of this matter: "A proper noun, or name, when considered independently of accidental features of coincidence with something that is familiar, _doesn't mean anything_; for this reason a mental picture of it is not easily formed, which accounts for the fact that the primitive, tedious way of rote, or repetition, is that ordinarily employed to impress a proper noun on the memory, while a common noun, being represented by some object having shape, or appearance, in the physical or mental perception, can thus be _seen or imagined_: in other words _a mental image_ of it can be formed and the _name_ identified afterwards, through associating it with this mental image." We think that the case is fully stated in this quotation. But in spite of this difficulty, persons have and can greatly improve their memory of names. Many who were originally very deficient in this respect have not only improved the faculty far beyond its former condition, but have also developed exceptional ability in this special phase of memory so that they became noted for their unfailing recollection of the names of those with whom they came in contact.