Cataloging: Fundamentals of the NLM® Classification
Module 4—General Principles
page 6 of 13
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
Topical Subheadings
- When a topical subheading is used with the primary subject, check both index and the main schedule to determine whether a specific number has been assigned to cover that aspect of the topic
- Whenever a main heading/topical subheading concept is indexed to a specific number in the class schedule that matches the primary main heading/subheading chosen, use that class number
- Example:
- In the index under Kidney the cataloger is led to WJ 300-378. Specific numbers for $x anatomy and $x physiology are not provided in the index
- In the index under Kidney the cataloger is led to WJ 300-378. Specific numbers for $x anatomy and $x physiology are not provided in the index
- However, an examination of the schedule leads the cataloger to WJ 301 for Kidney $x anatomy or Kidney $x physiology
