Yet it does not follow that the working hours of chief librarians should be absorbed in attending to innumerable and trivial items of detail which might be delegated to and done quite as well, or better, by their assistants. Not only is "genius a capacity for evading hard work," as has been said, but one of the proper duties of the executive of a library is to obtain the best results possible from the respective capacities of those through whom the library does its work. All of which should imply the exercise of a kindly and broad-minded disposition towards one's assistants, just as truly as of respect and obedience to one's superiors, or of courtesy and suavity in dealing with customers and the public. It may be only human for one to desire to be that "king of his world," of whom Carlyle speaks; but any policy which reduces the assistants to mere machines is not a true professional one, since it tends to rob the library world of talent which is needed and, except for such repression, might be developed and brought forward. On the other hand I might plead no less for corresponding loyalty and fidelity on the part of all library workers, both to their respective chiefs and the institutions that employ them. As a matter of fact, however, action of that kind is the prevailing practice in this country, with hardly an exception, and that phase needs no extended discussion. A chief is, of course, entitled to credit for acts done by subordinates at his direction and for which he is responsible. But chiefs, in turn, can well afford to give recognition to the ability and deeds of their assistants, and will seldom, if ever, lose by doing so. There are one or two other features of librarianship which merit passing mention. Among them are what may be termed library succession, or the librarian's duty to his successor. Some few librarians "die in the harness"; while quite as many more change from one place to another at times. Occasionally they are succeeded by those who come new into the work; and, gaining experience, become a credit to the profession. Advancement of those trained in smaller libraries to places in larger ones, or from the position of assistant in a library to the head thereof, has also brought forward quite as many more of those whose progress we watch with cordial interest. Although conscious of those facts, and of the inevitable changes and successions that must occur from year to year, do we recognize our duty to our successor? I have asked the question, but its consideration must be left to some future time and opportunity.