From 1875 to 1896 the number of libraries in the United States just about doubled, increasing steadily, and adding, during this period, about 2,000 libraries, or a little less than 100 per year. From 1896 to 1900, 1,350 libraries were added, or about 450 per year. From 1900 to 1903, 1,500 libraries were founded, or 500 per year. In the past ten years the number of libraries must have doubled; a ratio growth at least four times that of the population.... It is plain that the adjustment of the library to this movement of men's minds towards books is the most important practical question for all of us. Questions of management, of administration, of methods are all of secondary importance beside this one--if, indeed they may be called even secondary. For this change of base is a revolutionary affair, not a mere matter of readjustment of detail, and it is no easy task for the library to find itself in such a movement. Libraries are so small a part of the national intellectual life, so small, in the mass, for example, in comparison to the great universities, that their proper influence and work are easily overlooked. There is sometimes danger that they may be swept into currents guided by other forces rather than find opportunity freely to contribute their own share to the movement. Let us turn then to the more practical side of the question, and ask how the library is adjusting itself, in this changed relation of men, where it has best succeeded, and where it still has most to do. Let us ask where experience seems to promise successful solution of problems, and where the problems are in that stage in which only doubtful success can be expected from experiments, and final solution still lies far before us. The library began as a place to keep books, permitting their use by the public, but often under such restrictions as seem to indicate that this service was granted "grudgingly and of necessity." Books and the high life were in some obscure way correlated in the mind of the librarian, and he too often seemed to feel that these were treasures not to be shared by the many. The first change which came, therefore, as the library was swept into the general intellectual current of time, was the removal of restrictions on the use of books and their replacement by devices intended to encourage and extend that use. A second step, and a much more revolutionary one, has been to teach the community directly the uses of books, and thus not merely to afford easy conditions for the use of books on the part of those who want them, but to add a positive force which will compel the books to go out in the community, there to perform their present service and to create a demand for an increased service in the future.