saving of the expenses of attendance." It does not appear to have occurred to them that a public library owes anything to the public morality, nor that a library losing its books by the thousand, to save the cost of proper manage ment, may be holding out a premium to wholesale robbery. There is another precaution essential to be observed regarding the more costly and rare possessions of the library. Such books should not be placed upon the shelves with the ordinary books of the collection, but provided for in a repository under lock and key. In a large library, where many hundred volumes of books of especial rarity and value are to be found, a separate room should always exist for this class of books. They will properly include (1) Incunabula, or early printed books; (2) Manuscripts, or unique specimens, such as collections of autographs of notable people; (3) Illuminated books, usually written on vellum, or printed in color; (4) Early and rare Americana, or books of American discovery, history, etc., which are scarce and difficult to replace; (5) Any books known to be out of print; and (6) Many costly illustrated works which should be kept apart for only occasional inspection by realers. Where no separate room exists for safe custody of such treasures, they should be provided with a locked bookcase or cases, according to their number. When any of these reserved books are called for, they should be supphed to readers under special injunctions of careful hariling. Neglect of precaution may at any time be the means of losing to the library a precious volume. It is easy for an unknown reader who calls for such a rare or costly work, to sign his ticket with a false name, and slip the bk under his coat when unobserved, and so leave the library unchallenged. But the librarian or assistant who supplies the book, if put on his guard by having to fetch it from a locked repository, should keep the reader under observa

tion, unless well known, until the volume is safely returned. Designing and dishonest persons are ever hovering about public libraries, and some of the most dangerous among them are men who know the value of books.

This class of reserved books should not be given out in crculation, under any circumstances. Not only are they salt to injury by being handled in households where there are children or careless persons, who soil or deface them, but they are exposed to the continual peril of fire, and consequent loss to the library. There are often books among these rarities, which money cannot replace, because no copies can be found when wanted. In the Library of Congress, there is a very salutary safe-guard thrown around the most valuable books in the form of a library relation which provides that no manuscript whatever, and no printed book of special rarity and value shall be taken out of the library by any person. This restriction f course applies to Members of Congress, as well as to those officials who have the legal right to draw books from the library.

CHAPTER 12.

THE FACULTY OF MEMORY.

To every reader nothing can be more important than that faculty of the mind which we call memory. The retentive memory instinctively stores up the facts, ideas, imagery, and often the very language found in books, so clearly that they become available at any moment in after life. The tenacity of this hold upon the intellectual treasures which books contain depends largely upon the strength of the impression made upon the mind when reading. And this, in turn, depends much upon the force, clearness and beauty of the author's style or expression. A crude, or feeble, or wordy, redundant statement makes little impression, while a terse, clear, well-balanced sentence fixes the attention, and so fastens itself in the memory. Hence the books which are best remembered will be those which are the best written. Great as is the power of thought, we are often obliged to confess that the power of expression is greater still. When the substance and the style of any writing concur to make a harmonious and strong impression on the reader's mind, the writer has achieved success. All our study of literature tends to confirm the conviction of the supreme importance of an effective style.

We must set down a good memory as a cardinal qual fication of the librarian. This faculty of the mind fat, is more important to him than to the members of any other profession whatever, because it is more intr drawn upon. Every hour in the day, and sometimes every minute in the hour, he has to recall the names of certa a

books, the authors of the same, including both their surnames and Christian or forenames, the subjects principally treated in them, the words of some proverb or quotation, or elegant extract in poetry or prose, the period of time of an author or other noted person, the standard measurements and weights in use, with their equivalents, the moneys of foreign nations and their American values, the time of certain notable events in history, whether foreign or American, ancient or modern, the names and succession of rulers, the prices of many books, the rules observed in the catalogue, both of authors and subjects, the names and schools of great artists, with their period, the meaning in various foreign languages of certain words, the geographical location of any place on the earth's surface, the region of the library in which any book is located-and, in short, an infinitude of items of information which he wants to know out of hand, for his own use, or in aid of Library readers or assistants. The immense variety of these drafts upon his memory seldom perplexes one who is well endowed with a natural gift in that direction. In fat, it seems actually true of such minds, that the more runerous the calls upon the memory, the more ready is The response.

The metaphysicians have spent many words in atmpting to define the various qualities of the mind, and to account for a strong or a weak memory; but after a'l is said, we find that the surprising deference between dferent memories is unaccounted for; as unaccountable, indeed, as what differences the man of genius from the mere plodder. The principle of association of ideas is doubtless the leading element in a memory which is not merely verbal. We associate in our minds, almost inat petively, ideas of time, or space, or persons, or events, ar. these connect or compare one with another, so that

ber of the page, but he is sure of his recollection that it was the left or the right hand one, as the case may be, and this knowledge will abridge his labor and time in finding it again by just one half. This local memory is invaluable to a librarian or an assistant in shortening the labor of finding things. If you have a good local memory, you can, in no long time, come to dispense with the catalogue ani its shelf-marks or classification marks, almost entirely, in finding your books. Although this special gift of memory-the sense of locality-is unquestionably a lower faculty of the mind than some others named, and although there are illiterate persons who can readily find and produce any books in a library which have often passed through their hands, yet it is a faculty by no means to be despised. It is one of the labor-saving, time-saving gifts, which should be welcomed by every librarian. The time saved from searching the catalogues for location-marks of the outside of books, will enable him to make many a research in their inside. This faculty, of course, is indefinitely strengthened and improved by use-and the same is true of the other branches of the sense which we call memory. The oftener you have been to any place, the better you know the way. The more frequently you have found and produced a given book from its proper receptacle, the easier and the quicker will be your finding it again.

Another faculty or phase of memory is found in the ability to call up the impression made by any object once seen by the eye, so as to reproduce it accurately in speech or writing. This may be termed the intuitive memory There are many applications or illustrations of this faculty Thus, for example, you see a book on some shelf in your library. You take in its size, its binding, both the material and the color, and its title as lettered on the ba k All this you absorb with one glance of the eye. You re