Brayer.—A wooden or glass rubber, flat at the bottom, used to bray or spread out ink on the ink-block.
Break-line.—A short line.
Broad-side.—A form of one page, printed on one side of a whole sheet of paper.
Broken matter.—Pages of type disrupted and somewhat intermingled.
Bundle.—Two reams of paper.
Bur.—Rough edge of a type which the founder neglected to take off in dressing.
Cabinet.—A receptacle for cases, chases leads, &c.
Cancelled figures.—Figures cast with a line across the face.
Caret.—A character [^] used in proofreading to denote the place where omitted words should be inserted.