Subject
- Pennsylvania--Oil Creek (Crawford County and Venango County)2
- Petroleum industry and trade2
- Philalethes, Eirenaeus2
- Planetariums2
- Platinum2
- Priestly, Joseph, 1733-18042
- Prospectuses2
- Quartz2
- Scotland--St. Andrews2
- Slings2
- Snails2
- Snakes2
- Temperature measurements2
- Toxicology2
- Transmutation (Chemistry)2
- Veins2
- Water2
- Accum, Friedrich Christian, 1769-18381
- Agrostemma1
- Alcoholic beverages1