In short, the view taken in this paper may be briefly summed up as follows: Lay control in libraries and elsewhere is a logical and proper development. It would not, on the whole, be well for one who should wish to endow a library to make an expert librarian sole trustee for life with power to select his successor. That would be a fine thing for the librarian, but it would be neither desirable nor proper. It is well that the trustees should be responsible representatives of the lay public, for whose benefit the library is to be conducted. But as the public is interested chiefly in results, the trustees should confine themselves largely to the indication and requirement of these results, leaving methods in the hand of their expert staff of subordinates. And it is eminently desirable that librarians should hear from a representative body of trustees some expression of opinion regarding the extent of this limitation. THE WHOLE DUTY OF A LIBRARY TRUSTEE: FROM A LIBRARIAN’S STANDPOINT[4] At a former meeting of this section the present writer had the honor of reading a paper in which he made an attempt to show that the trustee of the public library is the representative of the public and, as such, interested especially in results as distinguished from methods, which are the business of the librarian as an expert administrator. In making this distinction I urged trustees to give particular attention to the formulation of such results as they should consider desirable, that librarians on their part might confine themselves more to the consideration of appropriate methods for the attainment of these results. So far as I know, however, this work remains to be accomplished, and it is because I still think it desirable that I welcome this opportunity of restating the situation and making some attempt to illustrate it and to indicate what may and should be done in the premises. According to this view it is not only the duty of a board of trustees to consider what should be the results aimed at by its library, to formulate its conclusions, to communicate them to the librarian and then to hold him responsible for their attainment, but everything that the board may properly do may be brought under this head; and to state it broadly is therefore to set forth comprehensively the “whole duty of a trustee,” which may serve as the justification of my somewhat ambitious title.