The proofs are now returned to the printer and corrected, and a revise (after passing through the proof-reader's hands) sent to the author, which process may be repeated _ad infinitum_, until the author gives the order to make up into pages.
The type is now handed over to the "make-up," and inasmuch as his work must be carefully revised by the proof-reader, we may describe it here. Having first of all made a gauge showing the size of the page--supposing the page to be seven inches deep, he will cut a notch in a thin piece of wood showing that size--he must "cast off" or estimate how the pages are going to "break." There must not be any short lines, or "widows" as the printers call them,--that is, the concluding lines of paragraphs which are not full length,--at the heads of pages. The first line of a paragraph should not appear at the bottom of a page (but this rule is more honored in the breach than the observance), and the concluding page of a chapter should not be less than one-quarter page in length. These difficulties are avoided by "saving" a line here and there,--that is, where the last line of a paragraph consists of only one or two words, in squeezing them into the line above, or by "making" lines, which is accomplished by spreading long lines out and driving one or two words over. Any line containing one word only at the end of a paragraph ought to overlap the indention of the first line of the next paragraph. Such a word as "is" or "it" will not do so and should be turned back to the line above. Then again, where cuts or illustrations are inserted in the text a page will sometimes break in the middle of a cut, which, as Euclid says, is impossible, therefore the cut must be moved, sometimes necessitating slight alterations in the text, _e.g._ "The following illustration" must be altered to "The illustration on the next page," or "The illustration above," as the case may be. And here we may remark that all cuts or illustrations should be made and furnished to the printer in time to be inserted in the first proof. The writer calls to mind an instance where the cuts arrived after the whole book had been made up into pages, necessitating a re-make-up at considerable expense.