The galley-proof, with the corresponding copy, is then handed to the proof-reader, who is assisted by a "copy-holder" (an assistant who reads the copy aloud) in comparing it with the manuscript and marking typographical errors and departures from copy on its margin. Thence the proof passes back again to the compositor, who corrects the type in accordance with the proof-reader's markings. Opposite page 44 is a specimen of a page proof before correction and after the changes indicated have been made.

New proofs are taken of the corrected galley, and these are revised by a proof-reader in order to be sure that the compositor has made all the corrections marked and to mark anew any he may have overlooked or wrongly altered. If many such occur, the proof is again passed to the compositor for further correction and the taking of fresh proofs. The reviser having found the proof reasonably correct, and having marked on its margin any noticed errors remaining, and also having "Queried" to the author any doubtful points to which it is desirable that the latter's attention should be drawn, the proof—known as the "first revise"—and the manuscript are sent to the author for his reading and correction or alteration.[2]

On the return of the galley-proofs to the printer, the changes indicated on the margins are made by compositors selected for the purpose, and the galleys of type and the proofs are then turned over by them to the "make-up." The "make-up" inserts the cuts, divides the matter into page lengths, and adds the running titles and folios at the heads of the pages.

At this stage the separate types composing the page are held in place and together by strong twine called "page cord," which is wound around the whole page several times, the end being so tucked in at the corner as to prevent its becoming unfastened prematurely. The page thus held together is quite secure against being "pied" if proper care is exercised in handling it, and it can be put on a hand-press and excellent proofs readily taken from it. A loosely tied page, however, may allow the letters to spread apart at the ends of the lines, or the type to get "off its feet," or may show lines slightly curved or letters out of alignment. The proof of a page displaying such conditions often causes the author, unlearned in printers' methods, much perturbation of mind and unnecessary fear that his book is going to be printed with these defects. These should in reality be no cause for worry, since by a later operation, that of "locking-up" the "form" in which the pages will be placed before they are sent to the electrotyping department, the types readily and correctly adjust themselves.

Proofs of these twine-bound pages are taken on a hand-press, passed to the reviser for comparison with the galley-proofs returned by the author, and if the latter has expressed a wish to see a second revise of the proofs, they are again sent to him. For such a "second revise" and any further revises an extra charge is made. The proofs to which an author is regularly entitled are a duplicate set of the first revise, a duplicate set of "F"-proofs,—to be mentioned later,—and one set of proofs of the electrotype plates; though it may be added that the last is not at all essential and is seldom called for.

Usually the author does not require to see another proof after the second revise, which he returns to the printer with his final changes and the direction that the pages may be "corrected and cast," that is, put into the permanent form of electrotype plates. Some authors, however, will ask to see and will make alterations in revise after revise, even to the sixth or seventh, and could probably find something to change in several more if the patience or pocketbook of the publisher would permit it. All the expense of overhauling, correcting, and taking additional proofs of the pages is charged by the printer as "author's time." It is possible for an author to make comparatively few and simple changes each time he receives a new revise, but yet have a much larger bill for author's changes than another who makes twice or thrice as many alterations at one time on the galley-proof, and only requires another proof in order that he may verify the correctness of the printer's work. The moral is obvious.

After the pages have been cast, further alterations, while entirely possible, are quite expensive and necessarily more or less injurious to the plates.

The author having given the word to "cast," the pages of type are laid on a smooth, level table of iron or marble called an "imposing stone." They are then enclosed—either two or three or four pages together, according to their size—in iron frames called "chases," in which they are squarely and securely "locked up," the type having first been levelled down by light blows of a mallet on a block of smooth, hard wood called a "planer." This locking-up of the pages in iron frames naturally corrects the defects noted in the twine-bound pages, and not only brings the type into proper alignment and adjustment, but prevents the probability of types becoming displaced or new errors occurring through types dropping out of the page and being wrongly replaced.

When the locking-up process is completed, the iron chase and type embraced by it is called a "form." A proof of this form is read and examined by a proof-reader with the utmost care, with a view to eliminating any remaining errors or defective types or badly adjusted lines, and to making the pages as nearly typographically perfect as possible. It is surprising how many glaring errors, which have eluded all readers up to this time, are discovered by the practised eye of the final proof-reader.

The form having received this most careful final reading, the proof is passed back to the "stone-hands"—those who lock up and correct the forms—for final correction and adjustment, after which several more sets of proofs are taken, called "F"-proofs (variously and correctly understood as standing for "final," "file," or "foundry" proofs). A set of F-proofs is sent to the author to keep on file, occasionally one is sent to the publisher, and one set is always retained in the proof-room of the printing-office. These proofs are characterized by heavy black borders which enclose each page, and which frequently render nervous authors apprehensive lest their books are to appear in this funereal livery. These black borders are the prints of the "guard-lines," which, rising to the level of the type, form a protection to the pages and the plates in their progress through the electrotyping department; but before the plates are finished up and made ready for the pressroom, the guard-lines, which have been moulded with the type, are removed.