This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1866 Excerpt: ...three in depth, and may be ascertained in the same manner precisely as for octavo or common twelves, which being done, the foot-margins may ...Read MoreThis historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1866 Excerpt: ...three in depth, and may be ascertained in the same manner precisely as for octavo or common twelves, which being done, the foot-margins may be ascertained. These, being two, may have a pica body each less than the outer foot-margins, to allow for any inequality in the size of the paper, or in laying on the white paper at press. This can be done by folding the paper exactly in three portions the narrow way of the sheet, and extending the pages until one of these portions covers the two outer pages with the gutter, and lies over the third about a pica body. When this has been done at one end of the form, the other end may be regulated in the same way. The margin may then be tried in the manner describefljefore, and any alteration necessary must be made in the space at the foot of the pages, care being taken that both spaces are equal. In long duodecimo, the pages are of the same size as the preceding, only that they exchange the length for the width, and the width for the length. The manner of making margin is the same for this size as for the last; the only difference between them being, that which was the gutter in the other making the head in this, and what was the head or bolt and the foot-margin now becoming the gutter and the back. The spaces between the pages, for heads, gutters, and backs, are ascertained in the same manner as described for ordinary duodecimo. As the number of pages increases in a sheet, so the utility of placing slips of paper, folded in the middle, in the gutters, backs, etc., becomes greater, by enabling the person whose business it is, to ascertain readily the middle of each space when he tries the whole margin with the sheet opened out. To some this may seem unnecessarily minute; but whatever method tends toward facilitating an o...Read Less
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited, Baker & Taylor, Inc., or by their respective licensors, or by the publishers, or by their respective licensors. For personal use only. All rights reserved. All rights in images of books or other publications are reserved by the original copyright holders.