This may seem to be the same as the plan by which the authority of one department is absolutely done away in the disputed sphere. It is of the same type, but not so drastic. In the other plan one has not authority to do anything; in this, one must ask permission--not the same thing by any means. This plan is practically in effect at some libraries; it would probably be regarded as equitable by most department heads--provided their own department were put ahead of the other. The trouble is that it involves an arbitrary subordination--one that does not exist in the nature of the classification. And this subordination is local and partial; it cannot hold good for the whole department. No one would think of placing the branch department, as a whole, under the children’s department, or _vice versa_. And the objections, although not so strong as those to the extinguishment plan, are of the same kind. The efficiency of one department or the other is bound to suffer, and for this reason I do not consider this the best plan. 4. All department heads in conflicting spheres, may be regarded simply as advisers of the librarian and not as possessing authority in themselves to give orders. A conflict is thus reduced to contradictory advice from two sources. The librarian then pursues whatever course seems good to him. This plan has attractive features, especially to administrators of the type that like to keep a finger in every pie. There is doubtless danger in aloofness. The librarian must know what is going on, but I see no advantage in requiring him to decide questions of trivial detail at frequent intervals, as he must do under this plan; for conflicts generally begin in questions of detail and it is at the beginning or even earlier, in anticipation, that they must be caught and adjusted. This plan works, but it reduces the department head to a consulting expert and burdens the librarian with detail. It does not appeal to me at all. 5. The two conflicting departments may co-operate, intelligently and courteously without sacrifice of authority or self-respect, under the advice and orders of the librarian.