Library of Congress >> MARC >> Authority >> 667-68X >> 688

688 - Application History Note (R)


MARC 21 Authority - Full
October 2001

First Indicator
Undefined
# - Undefined

Second Indicator
Undefined
# - Undefined


Subfield Codes
$a - Application history note (NR)
$5 - Institution to which field applies (R)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Information that documents changes in the application of a 1XX heading.

May contain such historical information as when a topical term or a geographic name became valid for subject purposes, earlier forms of the heading, and the period during which each earlier form was valid.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

SUBFIELD CODES

$a - Application history note
008/11 c
[code indicating MeSH]
150 ##$aCyclohexanones
688 ##$a(91)75; was see under CYCLOHEXANES 1975-90
008/11 r
[code indicating AAT]
150 ##$acollage
450 ##$acollage technique
680 ##$iUse for the technique of making compositions in two dimensions or very low relief by gluing paper, fabrics, photographs or other materials onto a flat surface. If heavy three-dimensional objects dominate, use "assemblage." If the constituent fragments form a somewhat unified image, use "montage."
688 ##$aMarch 1990 note added
008/11 a
[code indicating LCSH]
150 ##$aChild abuse
450 ##$wnnen$aCruelty to children
688 ##$aestab. 1975; heading was: Cruelty to children [1952-1975]
$5 - Institution to which field applies
See description of this subfield in Appendix A: Control Subfields.
$6 - Linkage
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.

INPUT CONVENTIONS

Punctuation and Spacing - Punctuation and spacing are matters of judgment.

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