Titles
- Medical Society of the District of Columbia: Theodore Wiprod2
- Medical exam2
- Medical instruments and apparatus: Diagram of overhead view of a bed2
- Medical instruments and apparatus: Diagram of side and overhead view of a bed2
- Medicine - Military - Equipment: Dressing packets2
- Medicine - Military - Equipment: Hospital corps pouch2
- Medicine - Military - Equipment: The medical soldier wearing new individual equipment2
- Melchior Ayrer Noriberg Philosophiae et Medicinae Doctor2
- Mercy Hospital, Hamilton, Ohio2
- Michael Servetus2
- Microscopy: General view- Early Microscopes2
- Microscopy: General view- Early Microscopes with various attachments2
- Microscopy: General view- Various attachments for Microscopes2
- Middlesex Hospital2
- Middlesex Hospital, London, England: Hospital office2
- Middlesex Hospital, London, England: Patient in armchair, interior of ward2
- Miss Burns2
- Mixing drugs and where to draw the line2
- Mobile medical units - Military: Mobile surgical hospital operating room trailer2
- Nathaniel Coffin, M.D2