Subject
- Payne, John19
- Payne, John, 1607-16471
- Pearson, George, 1751-18281
- Penguins1
- Pennsylvania--Oil Creek (Crawford County and Venango County)2
- Perceval, Robert, 1756-18391
- Perfumes4
- Periodic table1
- Periodic table of the elements1
- Perkin, William Henry, Sir, 1838-19071
- Personal narratives--British1
- Peru1
- Petroleum industry and trade2
- Pharmacy4
- Pharmacy--Early works to 18003
- Philaletha2
- Philosophy1
- Phlogiston1
- Phosphorescence1
- Physics5