Particular ideas. See [Ideas]
Parts of speech, differentiation of language into, [294-320], [339-342], [423]
Peckham, Mr. and Mrs., on memory in a spider, [207]
Perception, analogies between reason and, [32];
constituted by fusions of sensations, [37];
in relation to other mental faculties, [48];
illusions of, [49]
Perez on psychogenesis of the child, [26], [41], [158], [210]
Philippine language. See [Language]
Philology. See [Language]