Boards of library trustees vary in number, usually from three to nine or more. A board of three or five is found in practice more active and efficient than a larger number. The zeal and responsibility felt is apt to diminish in direct proportion to the increased numbers of the board. An odd number is preferable, to avoid an equal division of opinion upon any question to be determined.
In town or city libraries, the mode of selection of library trustees varies much. Sometimes the mayor appoints the library board, sometimes they are chosen by the city council, and sometimes elected by the people, at the annual selection of school or municipal officers. The term of service (most usually three years) should be so arranged that retirement of any members should always leave two at least who have had experience on the board. Library trustees serve without salary, the high honor of so serving the public counting for much.
The librarian is often made secretary of the trustees, and then he keeps the record of their transactions. He should never be made treasurer of the library funds, which would involve labor and responsibility incompatible with the manifold duties of the superintendent of a library. In case of a library supported by municipal taxation, the town treasurer may well serve as library treasurer also, or the trustees can choose one from their own board. The librarian, however, should be empowered to collect book fines or other dues, to be deposited with the treasurer at regular intervals, and he should have a small fund at disposal for such petty library expenses as constantly arise. All bills for books and other purchases, and all salaries of persons employed in the library should be paid by the treasurer.
The meetings of the trustees should be attended by the librarian, who must always be ready to supply all information as to the workings of the library, the needs for books, etc. Frequently the trustees divide up the business before them, appointing sub-committees on book selections, on library finances, on administration, furnishings, &c., with a view to prompt action.
If a library receives endowments, money gifts or legacies, they are held and administered by the trustees as a body corporate, the same as the funds annually appropriated for library maintenance and increase. Their annual report to the council, or municipal authorities, should exhibit the amount of money received from all sources in detail, and the amount expended for all purposes, in detail; also, the number of books purchased in the year, the aggregate of volumes in the library, the number of readers, and other facts of general interest.
All accounts against the library are first audited by the proper sub-committee, and payment ordered by the full board, by order on the treasurer. The accounts for all these expenditures should be kept by the treasurer, who should inform the librarian periodically as to balances.
The selection of books for a public library is a delicate and responsible duty, involving wider literary and scientific knowledge than falls to the lot of most trustees of libraries. There are sometimes specially qualified professional men or widely read scholars on such boards, whose services in recruiting the library are of great value. More frequently there are one or more men with hobbies, who would spend the library funds much too freely upon a class of books of no general interest. Thus, one trustee who plays golf may urge the purchase of all the various books upon that game, when one or at most two of the best should supply all needful demands. Another may want to add to the library about all the published books on the horse; another, who is a physician, may recommend adding a lot of medical books to the collection, utterly useless to the general reader. Beware of the man who has a hobby, either as librarian or as library trustee; he will aim to expend too much money on books which suit his own taste, but which have little general utility. Two mischiefs result from such a course: the library gets books which very few people read, and its funds are diverted from buying many books that may be of prime importance.
Trustees, although usually, (at least the majority of them) persons of culture and intelligence, cannot be expected to be bibliographers, nor to be familiar with the great range of new books that continually pour from the press. They have their own business or profession to engage them, and are commonly far too busy to study catalogues, or to follow the journals of the publishing world. So these busy men, charged with the oversight of the library interests, call to their aid an expert, and that expert is the librarian. It is his interest and his business to know far more than they do both of what the library already contains, and what it most needs. It is his to peruse the critical journals and reviews, as well as the literary notices of the select daily press, and to be prepared to recommend what works to purchase. He must always accompany his lists of wants with the prices, or at least the approximate cost of each, and the aggregate amount. If the trustees or book committee think the sum too large to be voted at any one time from the fund at their disposal, the librarian must know what can best be postponed, as well as what is most indispensable for the immediate wants of the library. If they object to any works on the list, he should be prepared to explain the quality and character of those called in question, and why the library, in his judgment, should possess them. If the list is largely cut down, and he considers himself hardly used, he should meet the disappointment with entire good humor, and try again when the members of the committee are in better mood, or funds in better supply.
It is very customary for boards of library officers to assume the charge of the administration so far as regards the library staff, and to make appointments, promotions or removals at their own pleasure. In most libraries, however, this power is exercised mainly on the advice or selection of the librarian, his action being confirmed when there is no serious objection. In still other cases, the librarian is left wholly free to choose the assistants. This is perhaps the course most likely to secure efficient service, since his judgment, if he is a person of tried capacity and mature experience, will lead to the selection of the fittest candidates, for the work which he alone thoroughly knows. No library trustee can put himself fully in the place of a librarian, and see for himself the multitude of occasions arising in the daily work of the library, where promptness, tact, and wide knowledge of books will make a success, and the want of any of these qualities a failure. Still less can he judge the competency or incompetency of one who is to be employed in the difficult and exact work of cataloguing books. Besides, there is always the hazard that trustees, or some of them, may have personal favorites or relatives to prefer, and will use their influence to secure the appointment or promotion of utterly uninstructed persons, in place of such candidates as are known to the librarian to be best qualified. In no case should any person be employed without full examination as to fitness for library work, conducted either by the librarian, or by a committee of which the librarian is a member or chief examiner. A probationary trial should also follow before final appointment.
The power of patronage, if unchecked by this safeguard, will result in filling any library with incompetents, to the serious detriment of the service on which its usefulness depends. The librarian cannot keep a training school for inexperts: he has no time for this, and he indispensably needs and should have assistants who are competent to their duties, from their first entrance upon them. As he is held responsible for all results, in the conduct of the library, both by the trustees and by the public, he should have the power, or at least the approximate power, to select the means by which those results are to be attained.