Page 36 - Training for Librarianship Library Work As a Career

TRAINING FOR LIBRARIANSHIP

siderably limited and the interest more inten-
sive. Consequently in many special libraries
classification schemes suited to the particular
collections are used. Thorough famih-
arity with the field to be covered and a
knowledge of the inter-relations of the sub-
jects involved are absolutely essential in
the making of any classification. In any
scheme of classification, logical order of
arrangement is required. The division into
groups or classes must be scientific; there
must be a definite relation between one sec-
tion or topic and another and between each
and the whole.
A good classification should be clear,
definite, logical and sufficiently minute to
meet the library's needs. It should have a
system of notation for indicating classes and
subclasses that provides for indefinite sub-
division. It should be so arranged that under
each main group or class, divisions are
arranged in descending order of importance.
While subjects and parts of subjects may be
closely correlated, the aim of any classifica-
tion is to bring like material together ; diffu-
se