Norwich, Dr. Browne at, ii. 120, and note. "Oak Silkworms," letter in _Times_ (Oct. 24, 1862) on, ii. 158. Obedience, the real "Divine service," ii. 143. Offenbach's "Fille du Tambour Major" referred to, ii. 194. Oil painting, determined by Titian, i. 117. Old Adam (see Shakespeare), ii. 97. Old Masters, exhibition, i. 106. Oliver, Roland for an, ii. 48. Opie, i. 75. Optical work, delicacy of, i. 94, 95. Optics, writers on, i. 195 (note). Organ, street nuisance of, ii. 18, 19 (note). Ornament, natural forms in, i. 129; in dress, ii. 155. O'Shea, and the Oxford Museum, i. 139, 142 (note). "Ought" and "are," ii. 63. "Our Sketching Club," ii. 165, and note. Oxford, Balliol oriel-window, i. 135; bishop of, on education, ii. 123 (note), 178; Bodleian library, traceries of, i. 135; Christ Church, fan-vaulting at, _ib._; drawing schools, i. 102, 113; examinations, letter on, i. 24; meeting in on St. Mark's, Venice, i. 170; printsellers, ii. 144; "An Oxford Protest," ii. 188; rich buildings, i. 135. Oxford Museum, the, letters on, i. 125-145; Acland, Dr., his lecture on, quoted, i. 125 (note), 130 (note), 132 (note); building of, i. 125 (note); capital in, i. 141, and note; decoration of, i. 127, 136, 137, 138, 143; porch proposed, i. 130; sculpture of, i. 137; spandril in, i. 144; success of its Gothic architecture, i. 130; its teaching, i. 138; the west front, i. 139. Padua, ii. 117. Painters, how roused to exercise their strength, i. 139; vision of, how it affects their pictures, i. 155. Painting and poetry, closely allied, i. 19; portrait-painting, ii. 170. _Pall Mall Gazette_, The-- (April 18, 1865) "Strikes _v._ Arbitration," ii. 48. Articles on strikes, _ib._ " masters and men, ii. 50, and note. (April 21, 1865) "Work and Wages," ii. 50. ( " 25, " ) " " ii. 52. (May 2, " ) " " ii. 54. ( " 9, " ) " " ii. 59. ( " 22, " ) " " ii. 62. Interpolation of, in Mr. Ruskin's letters, ii. 57-69. (March 1, 1867) "At the Play," ii. 185. (May 1, 1867) "Standard of Wages," ii. 65. (January 31, 1868) "True Education," ii. 123. ( " 19, 1871) "A Nation's Defences," ii. 113. (December 28, 1871) "The Streets of London," ii. 119. (March 16, 1872) "Mr. Ruskin's Influence--a defence," i. 154. ( " 21, " ) "Mr. Ruskin's Influence--a rejoinder," i. 156. (November 4, 1872) "Madness and Crime," ii. 130. (January 24, 1873) "How the Rich spend their Money," ii. 66. ( " 29, " ) " " " ii. 67. ( " 31, " ) " " " ii 68. ( " 11, 1875) " A Mistaken Review," ii. 165. ( " 19, " ) "The Position of Critics," ii. 167. Pan-droseion, i. 161.