<p>The plan of the following Classification and Index was developed early in<br /> 1873. It was the result of several months' study of library economy as<br /> found in some hundreds of books and pamphlets, and in over fifty personal<br /> visits to various American libraries. In this study, the author became<br /> convinced that the usefulness of these libraries might be greatly<br /> increased without additional expenditure. Three years practical use of<br /> the system here explained, leads him to believe that it will accomplish<br /> this result; for with its aid, the catalogues, shelf lists, indexes, and<br /> cross-references essential to this increased usefulness, can be made more<br /> economically than by any other method which he has been able to find.<br /> The system was devised for cataloguing and indexing purposes, but it was<br /> found on trial to be equally valuable for numbering and arranging books<br /> and pamphlets on the shelves.</p>画面が切り替わりますので、しばらくお待ち下さい。
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