Subject
- Physicians2
- Political cartoons1
- Portraits10
- Postage stamps4
- Postcards1
- Postmarks5
- Public health2
- Rabies1
- Rabies--Treatment1
- Rabies--Vaccination1
- Raulin, Jules (1836-1896)1
- Roux, Monsieur (Emile), 1853-19331
- Science1
- Science Museum (Great Britain)1
- Science on postage stamps6
- Science--Study and teaching5
- Scientific apparatus and instruments2
- Scientists9
- Semipostal stamps4
- Silkworms--Diseases1