Module 4—General Principles

Introduction

Module 1
Overview of NLM Classification

• Review Questions

Module 2
Using the Online NLM Classification

• Review Questions

Module 3
Components of NLM Call Numbers

• Review Questions

Module 4
General Principles

• Review Questions

Module 5
Table G

• Review Questions

Module 6
Form Numbers

• Review Questions

Module 7
Bibliographies and Related Materials

• Review Questions

Module 8
Classification of 19th Century Works and Early Printed Books

• Review Questions

Module 9
Continuing Resources

• Review Questions

Library of Congress Classification vs. NLM Classification

• LCC schedules augment the NLM Classification for subjects related to medicine (Cf. Module 1—Overview of the NLM Classification)

• Some LCC numbers or range of numbers appear in the NLM Classification index

• Although these numbers are verified against the LCC schedules periodically, the pertinent LCC schedules must be consulted since the numbers may change over time

• In some cases, a term is indexed to numbers in both the NLM and the LC classification schedules, depending on emphasis

• If medical aspects predominate, classify the work in the NLM schedule

• If social, religious, or other aspects predominate, classify in the LCC schedule

• In case of doubt, prefer the NLM schedule
  • Example:
    

  • A general work on social problems related to induced abortion is classed in the LCC schedule general works number for abortion, HQ 767-767.52. A work on how to perform an abortion is classed in the NLM schedule number for abortion, WQ 440

Human Medicine vs. Animal Medicine

• If the emphasis is on human medicine, classify with the medical aspect in the NLM schedule
  • Example:
    • A work discussing cancer research using laboratory animals in order to learn what causes cancer in humans, is classified in QZ with works on the etiology of cancer in humans 

• When an animal is discussed in connection with research, classify in QY under the specific number for the animal

• Class with the general number for Animals, Laboratory, if no specific number is available

• Care and breeding of laboratory animals also goes in QY

• When animal diseases, anatomy, and physiology, or the care and breeding of domestic animals are discussed, choose an appropriate number from the LCC schedules

• When the focus is on the laboratory animal rather than the disease, class with the laboratory animal

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