一般注記At head of title: Library of Congress.
Preface signed: Clarence W. Perley, acting chief classifier.
Schedules first written by C. W. Perley in 1903 under the direction of Mr. Charles Martel, chief classifier. The arrangement is based in the main upon the "Classification and index" of the library of the War college division of the General staff, pubished in 1903 by the Military information division of the Adjutant-general's office (U. S. War department)