=Management.= The corporation is managed by a Board of twenty-five Trustees, including the Mayor, Comptroller, and President of the Board of Aldermen _ex officio_. The names of the Trustees are given on page 76. The Trustees hold office continuously, and vacancies are filled by vote of the remaining Trustees. No Trustee receives any compensation for his services. The immediate management of the Library is entrusted to the Director. The Staff numbers between twelve and thirteen hundred persons, including those in the Central Building and in the Branches. As the buildings are open between twelve and thirteen hours a day the Staff works in two shifts. Somewhat less than half of the Staff are employed in the Central Building. [Illustration: BOYS' CLUB; YORKVILLE BRANCH] =Benefactors.= A complete list of the Library's benefactors, besides the three founders, can more appropriately be given elsewhere. In addition to Mr. Carnegie's gift, one bequest should be noted here: that of John S. Kennedy, who in 1909 left about $3,000,000 to the Library, without conditions. =Work of the Library.= This historical sketch may help to make clear the organization and work of the Library as it is carried on to-day. It is a free reference library combined with a free circulating library. The books in the Reference Department (in the Central Building) which came from either the Astor or the Lenox Libraries, and those which have been added since the consolidation, from the endowments of those Libraries, must necessarily be for reference use only. The Astor and Lenox Foundations give the Trustees of The New York Public Library no option in this matter. About one million books in the Circulation Department (the Branch Libraries) are lent for home use. [Illustration: KINGSBRIDGE BRANCH] [Illustration: FLOOR PLANS, CENTRAL BUILDING] [Illustration: FLOOR PLANS, CENTRAL BUILDING] TRUSTEES AND OFFICERS OF THE LIBRARY WILLIAM W. APPLETON ANDREW CARNEGIE CLEVELAND H. DODGE JOHN MURPHY FARLEY SAMUEL GREENBAUM FREDERIC R. HALSEY JOHN HENRY HAMMOND LEWIS CASS LEDYARD J. P. MORGAN MORGAN J. O'BRIEN STEPHEN H. OLIN HENRY FAIRFIELD OSBORN WILLIAM BARCLAY PARSONS GEORGE L. RIVES ELIHU ROOT CHARLES HOWLAND RUSSELL EDWARD W. SHELDON GEORGE W. SMITH I. N. PHELPS STOKES FREDERICK STURGES HENRY W. TAFT PAYNE WHITNEY JOHN PURROY MITCHEL, Mayor of the City of New York, _ex officio_ WILLIAM A. PRENDERGAST, Comptroller of the City of New York, _ex officio_ FRANK L. DOWLING, President of the Board of Aldermen, _ex officio_ OFFICERS _President_, GEORGE L. RIVES _First Vice-President_, LEWIS CASS LEDYARD _Second Vice-President_, ELIHU ROOT _Secretary_, CHARLES HOWLAND RUSSELL _Treasurer_, EDWARD W. SHELDON _Director of the Library_, EDWIN H. ANDERSON _Chief Reference Librarian_, H. M. LYDENBERG _Chief of the Circulation Department_, BENJAMIN ADAMS BRANCH LIBRARIES