Subjects
- United States2,402
- American Civil War1,497
- Military Personnel1,147
- United States. Army987
- Physicians924
- Homeopathy739
- Nonprescription Drugs708
- Medicine699
- New York503
- Child398
- Philadelphia352
- Hygiene336
- Massachusetts323
- Personnel Management315
- New York City294
- Materia Medica279
- Mexico261
- Boston250
- Confederate States of America242
- Constitution and Bylaws237
