- Operette (1)
- Orkney (1)
- Painting (1)
- Paleontology (1)
- Palestine (1)
- Parapsychology (1)
- Philosophy (3)
- Photographs (1)
- Photography (1)
- Phrenology (1)
- Playfair, Professor John (1)
- Plays (2)
- Pneumatics (1)
- Poems (1)
- Poetry (10)
- Political economy (3)
- Politics (2)
- Pottery (2)
- Prebyterianism (2)
- Presbyterian (3)
- Presbyterianism (2)
- Primates (1)
- Prince of Wales (1)
- Psychology (1)
- Raeburn, Henry (1)
- Reformation (2)
- Religion (14)
- Rhetoric (1)
- Russian Language (1)
- Science (2)
- Scotland (1)