Читать книгу Bookbinding, and the Care of Books - Douglas Cockerell - Страница 10

In addition to the pagination each sheet or section of a printed book is lettered or numbered. Each letter or number is called the “sheet’s signature.” Printers usually leave out J W and V in lettering sheets. If there are more sections than there are letters in the alphabet, the printer doubles the letters, signing the sections A A, B B, and so on, after the single letters are exhausted. Some printers use an Arabic numeral before the section number to denote the second alphabet, as 2A, 2B, &c., and others change the character of the letters, perhaps using capitals for the first alphabet and italics for the second. If the sheets are numbered, the numbers will of course follow consecutively. In books of more than one volume, the number of the volume is sometimes added in Roman numerals before the signature, as II A, II B.

The main pagination of the book usually commences with Chapter I., and all before that is independently paged in Roman numerals. It is unusual to have actual numbers on the title or half-title, but if the pages are counted back from where the first numeral occurs, they should come right.

There will sometimes be one or more blank leaves completing sections at the beginning or end. Such blank leaves must be retained, as without them the volume would be “imperfect.”

To collate a modern book the paging must be examined to see that the leaves are in order, and that nothing is defective or missing.

The method of doing this is to insert the first finger of the right hand at the bottom of about the fiftieth page, crook the finger, and turn up the corners of the pages with it. When this is done the thumb is placed on page 1, and the hand twisted, so as to fan out the top of the pages. They can then be readily turned over by the thumb and first finger of the left hand (see fig. 5). This is repeated throughout the book, taking about fifty pages at a time. It will of course only be necessary to check the odd numbers, as if they are right, the even ones on the other side of the leaf must be so. If the pages are numbered at the foot, the leaves must be fanned out from the head.