Page:ABC of Library Science.pdf/44

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subject is noticeably predominant, classify it. .

Aspects of a subject:

(1) Class under the subject illustrated, not under the subject suggested by the aspect. Example, social aspects of education, classed in education, not sociology.

(2) Works dealing with (i) theory or techni- que, and (ii) application of a process or procedure are classed under one or the other according to the author’s main purpose. If theory and technique are only introductory to description of application, classify under application. If application is only an example, classify under theory or technique.

Consider conditions in the individual library when choosing a class number. CLASSIFICATION SYSTEMS

The Harliest and the most popular Classification System

~The Dewey Decimal Classification system is the

-@arliest as weil as the widely used system. It was invented by Melvil Dewey, the great American Libr-

‘ary Scientist, when he was still a student at

Amherst College. Dewey ‘invented ‘this system so that all books published so far and all books that would be published could be classified under one system. Almost all modern libraries use the system only for classifying works other than fiction. Fic-