PRESERVATION AND USE OF THE PLATES.

When the titles have been stereotyped, and the plates ascertained to

be in perfect working order, they are to be arranged alphabetically,

and kept on sliding shelves, or shallow drawers, placed as near to

each other as possible. The catch-letters of the titles may be marked

upon the front of each shelf, so as to admit of alteration as the

changing of the plates may require. The ranges of shelves may be so

disposed as to form deep and narrow alcoves. A room of fifty feet by

forty would accommodate the plates of upwards of a million titles,

which may, in this manner, be kept in very compact and perfect order,

and, at the same time, be easily accessible.

It may not be amiss to add, that the material, which it is proposed

to employ in the stereotyping, is much less expensive than common

type metal; so cheap, indeed, that the whole expenditure on

this account, even for so large a collection, would be of small

importance. It is, besides, much lighter than type metal, more

convenient in handling, and requires fewer, and less expensive

fixtures. It is not at all affected by dampness, or by any ordinary

elevation of temperature.

The plates are mounted, for printing, upon blocks similar to those

ordinarily used for stereotype plates, but with continuous clamps

extending the whole length of the page. The breadth of page adopted

is such as is suitable for a work in octavo, or in double columns

in quarto or folio. The latter form (folio double columns) will

probably be found most convenient, as well as most economical, for

large catalogues. Presenting more titles upon a page, it enables a

student to examine and compare, with greater facility, the various

works of an author. It requires also less paper and press-work for

the same number of titles. These considerations have led to the

general adoption of the folio form for catalogues of large libraries.

To these it may be added, in the present case, that in folio pages it

would be practicable to avoid the division of titles between lines,

without occasioning observable irregularities in the length of the

pages.

METHOD OF USING THE STEREOTYPED TITLES IN THE FORMATION OF NEW

CATALOGUES.

In concluding these details of the system of stereotyping catalogues,

by separate titles, it now remains to say a few words upon the method

of employing the titles, in the construction of new catalogues.

Whenever, after the publication of one catalogue, upon this plan, it

should be proposed to form a catalogue of another library, the first

step would be to ascertain, which of the titles of such library have

been already stereotyped; for these need not again be transcribed.

This may be done in the following manner. A copy of the catalogue

already published, together with a copy of any titles which may have

been subsequently stereotyped, should be sent to the cataloguer, who

as he takes a book from the shelf should first seek for its title

among those already printed. If a title, strictly identical with that

of the book, be found, it should be marked in the margin.

When titles occur, which he does not find among those already

printed, they are to be written, each on a card or slip of paper,

according to the rules; and, as the work goes on, sent, in parcels,

to be stereotyped. When the cataloguer has gone through the library

in this manner, he is to return the printed catalogues, in the margin

of which he has marked the common titles. The printer will then be

able to select and combine the plates to be used for this particular

catalogue, impose them, print the requisite number of copies, and

distribute them to their places.

After the catalogues of several libraries shall have been thus

prepared and printed, they will be combined to form a general

catalogue of those libraries, and thus the labor of selecting common

titles will always be limited within narrow bounds.

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