Library of Congress >> MARC >> Classification >> 6XX >> 684

684 - Auxiliary Instruction Note (R)

MARC 21 Classification - Full
October 2008
First Indicator
Type of note
0 - Source entry
1 - Textual note
2 - Reference note

 Second Indicator
Undefined
# - Undefined
Subfield Codes
$a - Classification number-single number or beginning number of span (R)
$c - Classification number-ending number of span (R)
$i - Explanatory text (R)
$j - Caption (NR)
$y - Table sequence number for internal subarrangement or add table (R)		 $z - Table identification (R)
$5 - Institution to which field applies (R)
$6 - Linkage (NR)
$8 - Field link and sequence number (NR)

FIELD DEFINITION AND SCOPE

Information from, or reference to, a section of a classifier's manual or other documentation. An auxiliary instruction note provides advice for classifying in difficult areas, and describes policies and practices that may accompany a classification schedule.

Examples of auxiliary instructions may be found in the Dewey Decimal Classification manual or other documentation intended to be used with a classification schedule. A separate 684 note is used when different types of notes are recorded, identified by the first indicator. The information in this field is primarily intended to guide classifiers and is often not written in a form adequate for public user display.

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

■ INDICATORS

First Indicator - Type of note
Whether the note contains textual information from, or a reference to, auxiliary instructions.
0 - Source entry
Note contains information that appears in the entry itself and consists of a classification number and its corresponding caption.
1 - Textual note
Note contains the text of the note that appears in the source of the auxiliary instructions.
2 - Reference note
Note contains a reference from one section of the auxiliary instructions to another section or from the schedule or a table to a section of the instructions.
Second Indicator - Undefined
Undefined and contains a blank (#).

■ SUBFIELD CODES

$a - Classification number-single number or beginning number of span
May be a classification number in the entry itself, the number of the auxiliary instruction section referred to in a reference note, or a number referred to in a textual note.
Used to amplify the explanatory text of the note.
$c - Classification number-ending number of span
Ending number of a classification number span that is part of the note.
$i - Explanatory text
Explains the scope of the classification number. This subfield is repeated when other subfields intervene in the explanatory text.
$j - Caption
Classification number caption that applies to the auxiliary instruction note.
This caption indicates the scope of the note more accurately than the caption in subfield $j (Caption) of field 153 (Classification Number). Subfield $j is also used for topics that are separated from the rest of the note, especially in a list of topics and numbers associated with them.
$y - Table sequence number for internal subarrangement or add table
Sequence number or other identifier for an internal classification subarrangement or add table. If the first or only add table found at a classification number is the number 1, succeeding integers are used for any following add tables found at that number.
$z - Table identification
Identification of the table to which the classification number in the note belongs, if the classification number recorded in field 684 is part of a table. For a classification number span, subfield $z is given only once, before the first number.
$5 - Institution to which field applies
See the description of this subfield in Appendix A: Control Subfields.
$6 - Linkage
See the description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See the description of this subfield in Appendix A: Control Subfields.

■ EXAMPLES

Example 1

084 0#$addc$c21
153 ##$a395$hSocial sciences$hCustoms, etiquette, folklore$jEtiquette (Manners)
684 0#$a395$jEtiquette (Manners)
684 1#$iEtiquette includes prescriptive works on rules of conduct designed to make life pleasanter and more seemly and to eliminate causes of friction in the numerous minor opportunities for conflict or offense in daily life. More important matters of conduct are classed in$a170$iEthics.
 
Display example:
395
  Etiquette (Manners)
  Etiquette includes prescriptive works on rules of conduct designed to make life pleasanter and more seemly and to eliminate causes of friction in the numerous minor opportunities for conflict or offense in daily life. More important matters of conduct are classed in 170 Ethics.

Example 2

084 0#$addc$c21
153 ##$a338.1749$aSocial sciences$hEconomics$hProduction$kSpecific kinds of industries$kPrimary (Extractive) industries$hAgriculture$hProducts$hOrchards, fruits, forestry$jProducts of forestry
684 0#$a338.1749$ivs. $a333.75$jProducts of forestry vs. Forest lands
684 1#$81.1$iSeveral of the concepts provided at$a333.75$iby virtue of the add table under$a333.7$ipotentially conflict with concepts provided at$a338.1749.$iThe general distinction is that works classed in$a333.75$iare primarily concerned with forest land and uncut timber as present and future resources, whereas works classed in$a338.1749$iare primarily concerned with cut timber as a product to be sold. Class comprehensive works in$a338.1749.
684 1#$82.1$iUse of add table under$a333.7
684 1#$82.2$a11 $jReserves (Stock, Supply)$iClass in$a333.7511$ithe supply of forest land and uncut timber, in$a338.17498$ithe supply of cut timber.
684 1#$82.3$a12 $jRequirements (Need, Demand)$iClass in$a333.7512$ithe demand for timber discussed in terms of its effect on the supply of forest land and uncut timber. Class in$a338.17498$ithe demand for timber discussed in terms of how much timber will have to be cut in order to meet the demand.
 
Display example:
338.1749 vs. 333.75
      Products of forestry vs. Forest lands
      Several of the concepts provided at 333.75 by virtue of the add table under 333.7 potentially conflict with concepts provided at 338.1749. The general distinction is that works classed in 333.75 are primarily concerned with forest land and uncut timber as present and future resources, whereas works classed in 338.1749 are primarily concerned with cut timber as a product to be sold. Class comprehensive works in 338.1749.
          Use of add table under 333.7
      11
        Reserves (Stock, Supply)
        Class in 333.7511 the supply of forest land and uncut timber, in 338.17498 the supply of cut timber.
      12
        Requirements (Need, Demand)
        Class in 333.7512 the demand for timber discussed in terms of its effect on the supply of forest land and uncut timber. Class in 338.17498 the demand for timber discussed in terms of how much timber will have to be cut in order to meet the demand.

Example 3

084 0#$addc$c21
153 ##$a331.8$hSocial sciences$hEconomics$kEconomics of labor, finance, land, energy$hLabor economics$jLabor unions (Trade unions), labor-management (collective) bargaining and disputes
684 0#$a331$ivs. $a331.8$jLabor economics vs. Labor unions (Trade unions), labor-management (collective) bargaining and disputes
684 1#$iIndustrial relations in the broad sense of all relations between management and individual employees or employee groups is classed in$a331.$iIndustrial relations in the narrow sense of relations between management and labor unions is classed in$a331.8.$iIf in doubt, prefer$a331.
 
Display example:
331 vs. 331.8
      Labor economics vs. Labor unions (Trade unions), labor-management (collective) bargaining and disputes
      Industrial relations in the broad sense of all relations between management and individual employees or employee groups is classed in 331. Industrial relations in the narrow sense of relations between management and labor unions is classed in 331.8. If in doubt, prefer 331.

Example 4

084 0#$addc$c21
153 ##$a200.92$hReligion$hHistorical, geographic, persons treatment [formerly also 291.09]$jPersons
684 0#$a200.92$iand $a291$c299$iPersons [associated with religion] and Comparative religion, Religions other than Christianity
684 1#$81.1$iPersons associated with the religions in$a292$c299$iare often identified with a number of religious functions and activities. A Hindu guru, for example, may be thought of as a theologian, a teacher, a missionary, or a clergyman. If a religious leader cannot be identified primarily with one function, activity, or sect, class his biography in the base number for the religion and add notation$z1$a092 $ifrom Table 1. Class collected biography of persons from many religions who are not identified with one function or activity in$a200.922.$iFor persons associated with a specific religion, use a number that corresponds to the number given in the table below, e.g., a Buddhist member of a religious order$a294.365$i(corresponds to$a291.65$iin the table below). For comprehensive biographies of persons primarily identified with one function, activity, or sect, use the following table of preference:
684 1#$81.2$jFounders of religions$a291.63
684 1#$81.3$jFounders of sects$a291.9
684 1#$81.4$jFounders of religious orders$a291.65
684 1#$81.5$jReligious leaders (high ranking officials)$a200.92
684 1#$81.6$jOf specific sects$a291.9
684 1#$81.7$jTheologians $a291.2092
684 1#$81.8$jMoral theologians$a291.5092
684 1#$81.9$jMissionaries $a291.72092
684 1#$81.10$jMartyrs, heretics, saints$a200.92
684 1#$81.11$jOf specific sects$a291.9
684 1#$81.12$jTeachers $a291.75092
684 1#$81.13$jMembers of religious orders$a291.65
684 1#$81.14$jClergy $a200.92
684 1#$81.15$jOf specific sects$a291.9
[This is a record for a built number using Table 1, Standard subdivisions.]
 
Display example:
200.92 and 291
      Persons [associated with the religion] and Comparative religion, Religions other than Christianity
      Persons associated with the religions in 292 299 are often identified with a number of religious functions and activities. A Hindu guru, for example, may be thought of as a theologian, a teacher, a missionary, or a clergyman. If a religious leader cannot be identified primarily with one function, activity, or sect, class his biography in the base number for the religion and add notation 1 092 from Table 1. Class collected biography of persons from many religions who are not identified with one function or activity in 200.922. For persons associated with a specific religion, use a number that corresponds to the number given in the table below, e.g., a Buddhist member of a religious order 294.365 (corresponds to 291.65 in the table below). For comprehensive biographies of persons primarily identified with one function, activity, or sect, use the following table of preference:
        Founders of religions - 291.63
        Founders of sects - 291.9
        Founders of religious orders - 291.65
        Religious leaders (high ranking officials) - 200.92
        Of specific sects - 291.9
        Theologians - 291.2092
        Moral theologians - 291.5092
        Missionaries - 291.72092
        Martyrs, heretics, saints - 200.92
        Of specific sects - 291.9
        Teachers - 291.75092
        Members of religious orders - 291.65
        Clergy - 200.92
        Of specific sects - 291.9

SCHEME-SPECIFIC CONVENTIONS

Dewey Decimal Classification - Note that contains the auxiliary instruction caption (First indicator, value 0 (Source entry)) is input before the note containing the textual instruction (First indicator, value 1 (Textual note)).

CONTENT DESIGNATOR HISTORY

$y - Table sequence number for internal subarrangement or add table [NEW, 2008]
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