Pictures of Glass, Ancient, ii, 58.

  Pictures, Four finest at Rome, ii, 183.

  Pillar of On, iii, 8.

  Poecile at Athens, i, 13.

  Pompeii—­its Destruction;
    Antiquities and Works of Art discovered, ii, 43;
    Vivid Sketch of its present Appearance, etc., by an American
    Traveler, ii, 46.

  Pope as a Painter—­his Fame, i, 201;
    his Proficiency in the Art, ii, 214;
    his Idea of the Practicability of Dinocrates’ Plan of cutting Mount
    Athos into a Statue of Alexander the Great, ii, 166.

  Portici, the Site of Herculaneum, ii, 44 and 46.

  Portraits, Female, Rarity of, in Spain, iii, 191.

  Poussin, Nicholas—­his Noble Descent, iii, 148;
    his First Celebrity, iii, 149;
    his first Visit to Rome, iii, 150;
    his Enthusiasm and Assiduity, iii, 150;
    his Distress, and the Paltry Prices he received for his
    Works, iii, 151;
    his Ultimate Appreciation and Success, iii, 152;
    his Invitation back to Paris, iii, 153;
    the King’s Autograph Letter on the Occasion, iii, 153;

  Intrigues, his Disgust, and Secret Return to Rome, iii, 154;
    his Modesty, unostentatious Mode of Living, and his
    Generosity, iii, 155;
    Poussin and Cardinal Mancini, iii, 155;
    Reynolds’ Critique, iii, 156;
    Poussin and Marino, iii, 159;
    Poussin Romanized, iii, 160;
    his Habits of Study, iii, 161;
    his Old Age, iii, 162;
    his Master-Piece, iii, 163;
    his last Work and Death, iii, 163;
    his Letter to M. Felibien, iii, 164;
    his Ideas of Painting, iii, 164;
    Poussin and the Nobleman, iii, 165;
    and Mengs, iii, 165;
    and Domenichino, iii, 166;
    and Salvator Rosa, iii, 166;
    his Dignity, iii, 167;
    Poussin, Angelo, and Raffaelle compared, iii, 168.

  Prado, Blas de, and the Emperor of Morocco, iii, 207.

  Praxiteles, i, 155;
    his Works—­the Venus of Cnidus and the Apollo Sauroctonos, i, 155;
    Praxiteles and Phryne, i, 156;
    the King of Bithynia, and the Venus of Cnidus, i, 157.

  Press, Hydraulic, explained, iii 52;
    its Tremendous Power and Use, iii, 53.

  Proctor, his Genius and Works, i, 4;
    his Misfortunes and melancholy Death, i, 5.

  Protogenes, i, 149;
    his Works, and his famous picture of Ialysus and his Dog, i, 149;
    Protogenes and Demetrius Poliorcetes, i, 28, and i, 149;
    and Apelles, i, 25.

  Pyramids of Egypt, iii, 19.

  Pyramid of Cephren, Perilous Ascent of, iii, 27.

  Raffaelle, i, 70;
    his ambition, i, 70;
    Raffaelle and Michael Angelo, i, 71;
    his Transfiguration, i, 72;
    his Death, i, 74;
    his Character, i, 74;
    his Mistress, i, 75;
    his Genius, i, 76;