Thirty-sixes, scheme for imposing half-sheet of, 190. half-sheet of, without cutting, 190. the same, with two signatures, 191. Thirty-twos, scheme for imposing half-sheet of, 186. sheet of, 187, 188. sheet of, with four signatures, 187, 188. half-sheet, two signatures, 189. half-sheet of, mixed, 189. Thomas, Isaiah, 14. Tilloch, Dr. Alexander, 24. Tinted paper, coloured ink on, 291. Tints, neutral, 291. Title-deeds, scheme for imposing, 150. Title-pages, hints for setting, 134. remarks on, 134. Token-sheet, purpose of, 256. Tokens explained, 294. Tools for wood engraving, 34. Trade-marks, how to secure patents, 335. Transposing pages, directions for, 207. pages in companionships, 232. Turkey boxwood, best for engraving, 34. Turning a heap, directions for, 261, 262. Turpentine, spirits of, best for cleansing wood-cuts, 283. Tweezers, illustrated, 210. Twenties, scheme for imposing half-sheet of, with two signatures, 181. sheet of, 182. Twenty-fours, scheme for imposing half-sheet of, 183. sheet of, 183, 184. half-sheet, the sixteens way, 184. half-sheet of, long, 185. half-sheet of, without cutting, 186. Two-line letters, how used, 76. Tying up pages, 142, 143. Tympan suitable for cylinder press, 265. Tympans, how to cover, 254. Type bodies, point system of, 55, 56. Type-casting machine, description of, 42. illustrated, 41. origin of, 22. Type-casting machine, perfected by David Bruce, Jr., 22, 23. Type-founding a distinct calling in the seventeenth century, 18. early, in New York, 19. early, in Philadelphia, 19. in America, 19. in Europe, 18. Type-foundries in the United States, 23. Type-foundry, first American, at Germantown, Pennsylvania, 19. walk over a, 39-48. Type, how to lay a fount of, 127. Type-measure, 227. Type-metal, 40. Type-revolving printing machine, Hoe’s, illustrated, 240. Types, bill of, 57. Black or Old English letter, 49, 51. directions for choosing, 50. fount of, 58. gradation of, 55. how to prevent them from adhering, 127. Italic, invention of, 50. names and sizes of, 52-54. prices of, since 1801, 25. process of manufacturing, 39-43. Roman, invention of, 49. specimens of, 53, 54. _Typographic Advertiser_, 20. Typographical errors, a blemish, 200. peculiarities, ancient, 17, 18. Underlaying old stereotype plates, 282. Underlays, when proper on cylinder presses, 270-272. Uniformity in colors, how to secure, 263. in spacing essential, 130. Universal press, illustrated, 248. Unlocking forms, precautions in, 208. Upper-case sorts, 59. Van der Mey’s method of stereotyping, 24. Variations from copy chargeable, 211. Varnish for printing ink, how to make, 314. the common menstruum for colours, 286. Varnish, prevents enamel from peeling, 284.