Plato, i, 343; ii, 195; v, 131; xii, 99; appearance of, x, 103; Aristotle and, viii, 88; x, 114; Dionysius, Tyrant of Syracuse, and, x, 108; Emerson on, viii, 31; eugenics of, x, 118; influence of, x, 120; garden school of, viii, 87; Kant compared with, viii, 154; Franz Liszt compared with, viii, 87; Lowell on, viii, 87; philosophy of, x, 105; pupils of, xii, 267; Pythagoras and, x, 119; quoted, viii, 33; _The Republic_, x, 98, 117; viii, 221; Shakespeare compared with, x, 116; Socrates and, viii, 11, 29; x, 102; on the soul, viii, 403; Turner and, i, 131; writings of, x, 116. Platonic love, v, 100. Pleasure, v, 238. Pliny, the naturalist, xii, 269; quoted, xiii, 97. Plotinus, founder of Neo-Platonism, x, 281. Plutarch, i, p v; 114, 267; Vasari compared with, vi, 19. _Plutarch's Lives_, referred to, iii, 34. Plymouth Rock, xi, 56. Poe, Edgar Allan, v, 97; ix, 285; xi, 94; xiv, 51; _Annabel Lee_, xiii, 256. _Poems, Chiefly Lyrical_, Tennyson, v, 78. _Poems on the Life and Death of Laura_, Petrarch, xiii, 243. Poetry, the bill and coo of sex, v, 93; science versus, x, 114; Wordsworth's conception of, i, 223. Poets' Corner, Westminster Abbey, x, 43. Poets, potential, v, 93. Poise, v, 239. Poland, history of, xii, 101; xiv, 85. _Political Justice_, William Godwin, ii, 295; xiii, 85. Politics and oratory, vii, 209. Poliziano, poet and scholar, iv, 16. Pompeiian mosaic work, iv, 155. Pompey and Crassus, vii, 50. Pond, Major, i, p xxxvii; John Brown and, vii, 360; Henry Ward Beecher and, vii, 360; personality of, vii, 360; as manager for Elbert Hubbard, vii, 360; on Matthew Arnold, x, 220. _Poor Richard's Almanac_, Franklin, i, 150; iii, 47. Pope, Alexander, iii, 60; xiv, 261; on mankind, xi, 314; characterization of Lord Halifax, v, 250; Joshua Reynolds and, iv, 292; Voltaire and, viii, 295. Pope Innocent III, referred to, i, 151. _Popular Science Monthly_, Youmans, viii, 347; xii, 231. Portland, Duke of, and Thomas Paine, ix, 175. Portrait-painting in England, iv, 188. Portsea, island of, i, 196. Pose, vi, 190, 335. Positive Philosophy, the, viii, 253; essence of the, viii, 266. Positivism, ii, 86; a religion, viii, 270. Postage-stamps, collecting, iv, 121. _Potiphar's Wife_, Rembrandt, iv, 69; Van Leyden, vi, 78. "Poverty party," ii, 177. Powderly, Terence V., on labor, x, 27. Power, ix, 39; immortality and, vi, 57; source of, iv, 122. Powers, Levi M., ix, 283. Prayer, v, 174; xii, 95; an emotional exercise, ii, 80. Preaching, Erasmus on, x, 150. Precedent, vi, 191. Precocity, v, 121. _Prelude, The_, Wordsworth, i, 214. Preraphaelite Brotherhood, the, v, 18; vi, 11; xiii, 251. Preraphaelites, the, ii, 125; Whistler on the, v, 17. Pretense, v, 238. Pretyman, tutor of William Pitt, vii, 198. Priestly class, the, v, 203; xii, 221. Priestly, Dr., and Thomas Paine, ix, 174. Priest, position of, in society, iii, 99.