Subjects
- Disaster Planning1
- Education, Special1
- England1
- Hospitals, Municipal1
- Hospitals, Psychiatric1
- Massachusetts1
- Meningitis1
- Mentally Ill Persons -- statistics & numerical data1
- Microscopy1
- Military Hygiene1
- New England1
- New York. State Prison.1
- Philadelphia1
- Poland1
- Prisoners1
- Prisons1
- Russia1
- Smallpox1
- Smallpox -- epidemiology1
- Smallpox -- prevention & control1