Encyclopedias, Almanacs, Transcripts, and Maps
- Powder of Sympathy
- Powell, Ellis T(homas) (1869-1922)
- Powell, Evan (1881-?)
- Powell, Kenneth F(rancis) (1923-)
- Powell, W. H. (ca. 1879)
- Power of Prayer
- Power Spots
- Power Systems
- PPCC Bulletin
- Prairie Chicken
- Prairie Chicken
- Prairie Falcon
- Prairie Falcon
- Prasad, Kali (1901-)
- Pratincoles and Coursers: Glareolidae
- Pratt, J(oseph) G(aither) (1910-1979)
- Pratt, Morris (d. 1901)
- Praxagoras of Cos
- Praxiology
- Praying Mantis