Module 8—Classification of 19th Century Works and Early Printed Books
page 2 of 5
Introduction
Module 1
Overview of NLM Classification
Module 2
Using the Online NLM Classification
Module 3
Components of NLM Call Numbers
Module 4
General Principles
Module 5
Table G
Module 6
Form Numbers
Module 7
Bibliographies and Related Materials
Module 8
Classification of 19th Century Works and Early Printed Books
Module 9
Continuing Resources
19th Century Schedule
- Not part of the main NLM Classification
- Accessible via a link from the NLM Classification homepage
- Simplified subject classification developed in 1956 that is derived from the letters that represent the preclinical and clinical subjects
- Mostly limited to combinations of letters
- QS, QSA, QSB, QT, etc.
- Exceptions:
- W1-6, W 26, W 600, WX 2, and form number 22 appearing throughout the schedule
- In addition, the entire WZ schedule is used for 19th century works
- When the subject falls outside of the scope of the schedules of the NLM Classification, only the letters of the LC schedule representing the subject are used
- Examples:
- BF for Psychology
- SF for Veterinary Medicine
- Examples:
- Used for 19th century (1801-1913) monographs and serials
- Exception:
- Bibliographies follow the classification for modern bibliographies (Cf. Module 7—Bibliographies and Related Materials)
- Exception:
- Also used for facsimiles and reprints of works published between 1801-1913
- Classify here translations of works originally published from 1801-1913 only if the translation itself is published from 1801-1913
