On the other hand, if a library had a collection of editions of the _Utopia_, it would be a good and reasonable economy to cover the whole by a reference to the author's name, where they would be found set out in detail, as
Utopia. More, Sir T. _See under_ More, Sir Thomas.
The remaining entries, continued on the same lines, are
New Atlantis. Bacon, Lord. (Morley. Ideal commonwealths.) n.d. City of the Sun, The. Campanella, T. (Morley. Ideal commonwealths.) n.d. Mundus alter et idem. Hall, J. (Morley. Ideal commonwealths.) n.d.
For the classified catalogue the full entry, as shown under Morley above, is numbered 320.1 (Political Science. Theory of the State), and each author must appear in the index.
The foregoing rules and suggestions are also applicable to works of a varied character when the work of a _single author_--volumes of essays usually meriting and receiving separate entries under the subjects. Fletcher's _A. L. A. Index to General Literature, Boston_, 1905, is a useful work of reference in this connection, though it does not compensate for the want of the indexing referred to in this chapter.
A volume may consist of a number of essays or articles by an individual author upon topics so closely related that they are a contribution to a single subject. Such, for example, is
PELHAM, Henry F. Essays; collected and ed. by F. Haverfield. pp. xxiv., 328, map. la.8º _Oxf._, 1911 937
This is lettered on the publisher's cover "Essays on Roman History." The contents of the volume, which should be set out under the above entry, are
Biographical note. The Roman curiæ. Chronology of the Jugurthine War. The early Roman emperors (Cæsar-Nero). Problems in the constitution of the Principate. The domestic policy of Augustus. Notes on the reign of Claudius. Hadrian. The Roman frontier system. The Roman frontier system in Southern Germany. Arrian as legate of Cappadocia. Discoveries at Rome, 1870-89. The imperial domains and the colonate. Pascua. Pagus.
Although so miscellaneous in character, this book requires but one subject-entry, as it would be a work of supererogation to index each essay separately.
=Rome=: _History._ Pelham, H. F. Essays. 1911 937
For the classified catalogue the book is not placed under English Essays (824), but under Ancient History--Rome (937), the index entries being