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Guidelines on Subject Thesauri
General Guidelines
The subject vocabularies indicated here are intended for use as a supplement to, not in lieu of, the Library of Congress Subject headings. The vocabularies are designed to provide additional access points relevant to specific communities, cultural identities, and areas of practice.
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The Homosaurus is a specialized vocabulary for describing LGBTQIA+ materials in libraries, archives, museums, and other cultural institutions. The Homosaurus vocabulary uses the current language of the LGBTQIA+ community, and is congruent with best practices for its description. It also includes a number of historical LGBTQIA+ terms with instructions on the subjects and periods to which these terms can be applied. It includes both narrower terms and more culturally-appropriate terms than are available in the Library of Congress Subject Headings.
Example: Supplementing an LCSH term with a more culturally-appropriate term from the Homosaurus
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Subject Headings for Chinese rare books
Vocabulary Name | Romanized title | ‡2 code | List of Terms | Application |
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中國古籍善本書總目分類表 | Zhongguo gu ji shan ben shu zong mu fen lei biao | ‡2 sk | Chinese language vocabulary (rare materials) | pre-1795 publications |
中國古籍總目 | Zhongguo gu ji zong mu | ‡2 skbb | Chinese language vocabulary (rare materials) | post-1795 publications |
The bibliographic description of Chinese rare books requires the addition of more detailed, specialized Chinese subject headings to be integrated with the application of more general Library of Congress subject headings. The two resources above are used exclusively for Chinese subjects of rare materials, and are added with parallel fields in vernacular and in Romanized form. Ex.:
650_7 ‡a Zi bu ‡x Zhu jia lei ‡x Jidu jiao zhi shu ‡2 skbb
650_7 ‡a 子部 ‡x 諸家類 ‡x 基督教之屬 ‡2 skbb
and
650_7 ‡a Zi bu ‡x Tian wen suan fa lei ‡x Li fa. ‡2 sk
650_7 ‡a 子部 ‡x 天文算法類 ‡x 曆法. ‡2 sk
The second indicator of MARC field 650 must be 7, paired with subfield 2 with the appropriate vocabulary's approved code. Both vocabularies can be applied together.
Guidelines on Form and Genre Thesauri
General Guidelines for Form/Genre Terms
Assign Form/Genre terms according to cataloger judgment and/or project guidelines. The policy attempts to establish uniformity in the description of similar materials, while also accommodating description of the broad range of rare materials held in PUL’s collection. Catalogers’ application of form/genre terms should take into consideration the research needs/interests of PUL Special Collections users: curatorial and public services staff, faculty, students and other researchers.
CaMS professional catalogers should apply MARC 655 form/genre terms from the thesauri indicated, in order of preference, in the table below. RBMS Controlled Vocabularies (comprising six distinct thesauri) are treated as the most-preferred source of terminology.
Table of Form/Genre Thesauri
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Order of Preference | Organization | Name of Thesaurus | Number of Terms (as of Aug 2024) | Source Code |
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Parenthetical Qualifier
Chronological Subdivision | Geographic Subdivision | Website | |
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1 | RBMS |
Genre Terms
rbgenr
RBMS Controlled Vocabulary for Rare Materials Cataloging | 1466 | rbmscv | Do not subdivide | Do not subdivide |
RBMS
Binding Terms
rbbin
(Binding)
Subdivide item-specific terms by century, if known
Subdivide item-specific terms by country, if known
RBMS
Paper Terms
rbpap
(Paper)
Subdivide Item-specific terms by century, if known
Subdivide item-specific terms by country, if known
RBMS
Printing & Publishing Evidence
rbpri
rbpub
(Printing)
(Publishing)
Subdivide item-specific terms by century, if known
Subdivide item-specific terms by country, if known
RBMS
Provenance Evidence
rbprov
(Provenance)
Subdivide item-specific terms by century, if known
Subdivide item-specific terms by country, if known
RBMS
Type Evidence
rbtyp
(Type evidence)
Subdivide item-specific terms by century, if known
Subdivide item-specific terms by country, if known
2 | LC | LC Genre/Form Terms | 2571 | lcgft |
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Do not subdivide, as per LC policy | Do not subdivide, as per LC policy | |||
3 | Getty AAT | Art & Architecture Thesaurus | (Terms in the categories of "object facets" or "genres in literature and performing arts") | aat |
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[none]
Subdivide item-specific terms by century, if known | Subdivide item-specific terms by country, if known | |||
4 | LC | Thesaurus for Graphic Materials II: Genre and Physical Characteristic Terms (TGM II) | 1287 | gmgpc |
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Subdivide item-specific terms by century, if known | Subdivide item-specific terms by country, if known |
PUL
Do not use; update legacy terms if possible
Do not use
Do not use
Do not use
Indicators, Subfields, and Parenthetical Qualifiers for Form/Genre Terms
Indicators and subfields
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Indicators and Source Codes
When applying thesauri terms from the list above, catalogers should add the source code for of the thesaurus from which the term comes after the terms themselvesspecific thesaurus, using MARC format ‡2: ‡2 rbgenr, ‡2 rbprov, ‡2 aat, for instance.Thesaurus terms used in should also be coded as “655_7” to indicate that the source of the term is specified in subfield ‡2 For example: 655 _7 ‡2 [source code]. For example,
- 655_7 ‡a Fairy Cumulative tales. ‡2 rbgenr
- 655_7 ‡a Inscriptions (Provenance) ‡2 rbprov
Parenthetical Qualifiers
Terms from the RBMS Binding Evidence (rbbin), Printing and Publishing Terms (rbpri, rbpub), and Provenance Evidence (rbprov) thesauri should also include the relevant qualifier after the thesauri source code (in parenthesis), immediately after the thesauri term itself. For instance:
- 655_7 ‡a Binders tickets (Binding) ‡2 rbbin
- 655_7 ‡a Miniature books (Printing) ‡2 rbpub
Chronological and Geographic Subdivisions
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- ‡2 lcgft
Item-Specific Terms
Form terms used to describe aspects of materials that are specific to the item (copy) at hand, such as inscriptions, presentation autographs, or bespoke bindings, should be coded ‡5 NjP at the end of the 655 field. For example:
- 655_7 ‡a Presentation inscriptions ‡2 rbmscv ‡5 NjP
Form terms that refer to aspects of the broader manifestation (issue or edition, in bibliographic terms), such as printed paper wrappers in an edition or a publisher's edition binding, should not be coded as ‡5, since these are not unique to the item at hand.
Subdivisions for Item-Specific Terms
RBMS Controlled Vocabulary for Rare Materials Cataloging, LC Genre/Form Terms , and PUL Local Terms should not be subdivided chronologically, geographically, or topically.
Chronological and geographic subdivisions may be applied to item-specific form terms only from the following vocabularies:
- RBMS: Binding (rbbin), Provenance (rbprov), Printing (rbpri)/Publishing (rbpub), Type (rbtyp), Paper (rbpap)
- Getty AAT Getty AAT [See FAQ]
- Thesaurus for Geographic Materials II (GMGPC) [See Subdivisions]
The subdivisions should reflect the date/place of the aspect described by the form/genre term, rather than the printing/publication date/place of the manifestation as a whole (which may or may not differ from the date of the item-specific aspect described).
Chronological subdivisions: should be applied by century, not specific year. For example:
- Authors’ presentation inscriptions (Provenance) ‡y 18th century ‡2 rbprov ‡5 NjP
;
Geographical subdivisions: should be applied by country,not by city or smaller geographical entity. For example:
- Armorial bindings (Binding) ‡z Great Britain ‡y 18th century ‡2 rbbin ‡5 NjP
Item-Specific Terms
Form terms used to describe aspects of materials that are specific to the item (copy) at hand, such as inscriptions, presentation autographs, or bespoke bindings, should be coded ‡5 NjP at the end of the 655 field in Voyager cataloging. For example:
- 655_7 ‡a “Inscriptions (Provenance) ‡2 rbprov ‡5 NjP”.
If cataloging directly in OCLC, use ‡5 PUL in lieu of ‡5 NjP. For example:
- 655_7 ‡a “Inscriptions (Provenance) ‡2 rbprov ‡5 PUL”.
Form terms that refer to aspects of the broader manifestation (issue or edition, in bibliographic terms), such as printed paper wrappers in an edition or a publisher's edition binding, should not be coded as ‡5, since these are not unique to the item at hand.
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- 655 _7 ‡a ... ‡z United States ‡y 20th century. ‡2 aat ‡5 NjP
Retired Vocabulary Sets (Do Not Use)
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1) RBMS thesauri
RBMS Controlled Vocabularies, previously comprising six distinct thesauri, have been integrated into the RBMS Controlled Vocabulary for Rare Materials Cataloging.
2) PUL Local Terms
Previously, a select number of Local Form/Genre terms were developed by Special Collections curators and catalogers, for application to specific subsets of material. As their application and MARC encoding has been sporadic, the use of local terms by PUL cataloging staff has been discontinued.
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