| 10881 | Permeability and Metabolism of Urea in the Intestine of the Elasmobranch, Squalus acanthias | | | | | | |
| 10628 | Permeability Characteristics of the Goosefish Nephron | | | | | | |
| 10726 | Permeability of Dogfish Gill to Sodium | | | | | | |
| 10568 | Permeability of the Blood-Cerebrospinal Fluid Barrier in the Dogfish to Sulfanilic Acid and pAminoHippurate | | | | | | |
| 10961 | Permeability of the Dogfish and Bullfrog Gastric Mucosae to Urea and Thioureax | | | | | | |
| 10500 | Permeability of uterine mucosa of gravid Squalus acanthias to phosphorus | | | | | | |
| 11254 | Permselective Properties of the Secretory Epithelial Barrier in the Isolated Perfused Rectal Gland of the Spiny dogfish (Squalus acanthias) | | | | | | |
| 10614 | Persistence of Transcellular Sodium Transport by an Epithelial Cell Membrane in the Absence of Oxidative Phosphorylation | | | | | | |
| 12807 | Persistent Neurogenesis in Semi-Isolated Brains of the Crab Carcinus naenas | | | | | | |
| 12413 | PGI2, Not PGE, Is the Endothelium-Derived Relaxing Factor in the Shark (Squalus acanthias) Ventral Aorta | | | | | | |
| 10964 | pH Measurement and Bicarbonate Formation in the Frog Skin (Rana clamitans) | | | | | | |
| 12726 | pH-Dependent Sulfate Secretion by the Renal Proximal Tubule of Pleuronectes americanus | | | | | | |
| 11146 | Pharmacokinetic Studies of Antineoplastic Agents in the Dogfish, Squalus acanthias | | | | | | |
| 12441 | Pharmacologic Characterization of an ETϐ Receptor in the Gill of the Shark, Squalus acanth1as | | | | | | |
| 10951 | Pharmacologic Interference with Osmoregulation in the Eel (Anguilla rostrata): Observations on Ethacrynic Acid, Acetazolamide, and Ouabain | | | | | | |
| 12906 | Pharmacological Evidence for the Transport of Glucose Through a Symporter in the Rectal Gland of Squalus acanthias | | | | | | |
| 10379 | Phenol red transport as an indication of functional capacity of developing Chick mesonephric and metanephric tubules | | | | | | |
| 12952 | Phosphatase Activity of Selected Tissues | | | | | | |
| 11731 | Phosphodiesterase Activity in the Rectal Gland of Squalus acanthias | | | | | | |
| 12192 | Phosphodiesterase Inhibition of DNA Synthesis in the Testis of the Spiny dogfish Squalus acanthias | | | | | | |
| 12322 | Phosphopeptide Analysis of the Shark (Squalus acanthias) Rectal Gland NaKCl Cotransporter | | | | | | |
| 10419 | Photodynamic action of toluidine blue on sperm and eggs of Echinarachnius parma | | | | | | |
| 10483 | Photodynamic action, dark action and effect on oxygen uptake of rose Bengal on sperm of Echinarachnius Parma | | | | | | |
| 10590 | Photographs | | | | | | |
| 10929 | Phylogenetic Study of Hepatic Organic Anion Uptake Mechanisms | | | | | | |