Pleura, [84].
Plexus, [281].
Pneumonia, [94].
Pons, [290].
Pons Varolii, [290].
Portal vein, [154].
Primitive sheath, [284].
Proteids, [161].
Circulating, [179].
Kinds of, [118].
Purposes of, [119].
Supplied by, [125].
Tests for, [135], [136].
Tissue, [179].
Protoplasm, [14].