The designation Suppl. following an LC call number is a device used to shelve two works beside each other when one of them supplements the other.  Since the two works are cataloged separately, the subject cataloger is responsible for identifying a supplementary work and requesting the shelflister to treat it as such.  This instruction sheet provides guidelines on assigning call numbers to supplementary works.  For shelflisting instructions for supplementary works, see G 155.  For instructions on assigning subject headings to supplementary works, see H 2145.

Definition:  A supplementary work is a separately issued subordinate work which continues or complements a previously issued work.  A supplement generally has a formal relationship with the original work expressed by common authorship, a common title or subtitle, and/or a stated intention to continue or supplement the original.  Supplements, appendices, indexes, addenda, continuation of texts without volume numbering, etc., are all considered supplementary works.


1.  General rule:

Class a work that supplements a monograph with the original work.  On the classification slip provide the complete call number, not just the class number, of the original work. Include the date, if any, and add the designation Suppl..  Example:

If a work supplements a particular numbered volume of a series, provide the volume number as well. Example:

image\POINT_BL.gif Call number not available

2.  Serial supplements.

image\POINT_BL.gif Supplements to serials

image\POINT_BL.gif Serials as supplements to monographs

3.  Indexes:

Class indexes to an individual monographic or serial publication with the original publication (cf. F 610). Provide the complete call number of the original publication for the shelflister, but do not add the designation Suppl. The shelflister will determine whether or not to add Suppl. according to the guidelines in G 155.

See also:

Special Topics, Categories of Material, Etc.