faster of late years than the circulation. In other words, individual reading has not increased, and the great recent increase of circulation in our library and presumably in others also, is due to an increase of readers. The size of the library’s public is therefore increasing and there is no reason to suppose that it will not continue to do so. Of course there must be a limit. For instance, certain sections of the public will not use a library--as they will not use a school--in conjunction with other sections. This may be because of social or racial feeling, or personal uncleanliness or offensiveness, even when the latter is not carried to the point where the librarian can properly object to it. In such cases the lower element will drive out the higher. The remedy seems to be sought in segregation. This may be either open and acknowledged as in those southern cities where the library has a separate department for colored people, or it may be virtual, as where a convenient lounging room with newspapers is provided for the tramp element, sometimes with the privilege of smoking. In large cities the branch library system acts in the same way. The character of the card-holders is determined by that of the surrounding district and we thus get practically separate libraries for separate sections of the community. I look to see this separation proceed to a somewhat greater degree, not perhaps systematically but automatically and almost involuntarily. In spite of the apparent concession to class feeling, it will certainly increase the aggregate use of the library and thus make it more truly a public institution. So far as the branch system is concerned, of course, this is only one of the ways in which it increases the size of the library’s public. Even in a section where the population is perfectly homogeneous, more people will always be served by two libraries than by one. The number of branch library systems is rapidly increasing and the prospects are that the greatest possible use is to be made of them in the future. And they will be made up of true branches. Delivery stations have their uses, but they can never take the place of buildings with permanent stocks of books and all the conveniences of a separate library. Where a branch building is also a delivery station, as it always should be, that is, where the users of a branch are allowed to draw on the stock of the Central Library or of the other branches, it is found that the branch use vastly exceeds the station use. In our own library a branch that circulates 500 to 1000 of its own books daily will give out only two or three from other branches. This is sufficiently indicative of the preferences of the public, and in a matter of this kind public preference will ultimately govern. These branch libraries will have limited stocks of books, mostly, though not entirely, on open shelves, and will include small reference collections