---- animal charcoal in photography, 245. ---- antiquarian photographic club, 273. 462. ---- Archer (Mr.), his services to photography, 218. ---- black tints of French photographers, 116. 315. ---- calotype negatives, 437. ---- camera for out-door operations, 49. 116. 163. 266. 462. ---- catalogues of books, 507. ---- collodion pictures, 485. 533. 582. ---- collodion process, 92. 116. 162. 163. 185. 266. 267. 363. 388. 414. 484. 562. ---- DelaMotte and Cundall's Photographic Institution, 442. ---- developing chamber, 315. ---- developing fluid, 462. ---- Diamond (Dr.), his services to photography acknowledged, 93. ---- difficulties in photography, 245. ---- glass baths, 437. 557. ---- gun cotton, 314. ---- gutta percha baths, 415. ---- head-rests, 338. ---- hydrosulphite of soda, 74. ---- India-rubber substituted for yellow glass, 71. ---- iodized paper, 48. 92. 140, 141. 187. 293. ---- iodizing difficulty, 605. ---- Le Gray and the collodion process, 47. 389. ---- lens, test for, 485. 533. 555. 582. ---- Lyte's mode of printing, 557. ---- microscopic pictures, 507. 556. ---- Newton's process, 140. 163. 187. 219. 245. 294. 338. ---- Pollock's directions for obtaining positives, 581. ---- portraits of criminals, 506. ---- positives, 533. 581. ---- processes upon paper, 20. 71. ---- pyrogallic acid, 70. 117. 266. ---- sealing-wax for baths, 314. ---- sensitive paper, 48. ---- Sisson's new developing fluid, 534. ---- soiling of the fingers, 162. ---- Society, 120. ---- Society of Arts, their exhibition, 22. ---- solutions, 48. 265. 363. ---- stereoscopic pictures, 48. 70. 505. 557. ---- sulphuric acid, 265. ---- talc for collodion pictures, 338. ---- Taylor's iodizing process, 187. 217, 218. 244. 364. ---- tent, 462. 485. 534. ---- wax-paper process, 71. 93. 218. ---- Wilkinson's mode of levelling cameras, 604. Pic-nic, its etymology, 23. 240. 387. 585. Pictones (John), tutor to Queen Elizabeth, 133. Pictor on Herbé's Costumes Français, 182. Picts' houses and argils, 430. Pierrepont (John) noticed, 65. 606. Pilgrimages to the Holy Land, 341. 415. Pim (Jonathan) on marriage ring, 332. Pinkerton (W.) on French sizain, 174. ---- painter--Derrick, 507. ---- Robert Drury, 485. ---- serpent's tongue, 316. ---- throwing old shoes for luck, 288. ---- unlucky days, 232. Pinto (Ferdinand Mendez), a liar of the first magnitude, 551. Pitt of Pimperne, his works, 135. P. (J.) on grafts and the parent tree, 261. ---- lion at Northumberland House, 548. ---- phrase "Coming home to men's business," 235. ---- quotation from Shakspeare, 209. ---- suicide at Marseilles, 316. P. (J.) jun. on emaciated figures, 439. ---- font inscriptions, 625. P. (J. R.) on historical proverb, 156. Planets, origin of their names, 132. Plants, discovery of, 84. 211. ----, names of wild, 233. 441. Plaster, Chapel, 37.