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Panizzi, A.K.C.B.: Passages in my official life (1871)
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- Date
- 22. 7.2007 12:05:26
22. 7.2007 12:08:24
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Bidwell, S.: Curiosities of light and sight (1899)
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- 6. 3.2020 17:58:22
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Hosmer, J.K.: On browsing (1890)
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Schwartz, J.: ¬A new classification and notation (1882)
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Massey, A.P.: Classification of fiction (1881)
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Förstemann, E.: Systematische, alphabetische, chronologische Anordnung (1884)
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Cutter, C.A.: ¬The new catalogue of the Harvard College Library (1869)
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Harris, W.T.: Essay on the system of classification (1870)
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Wheatley, H.B.: What is an index : a few notes on indexes and indexers (1879)
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Dewey, M.: Decimal Classification and Relativ Index for Arranging, Cataloging, and Indexing Public and Private Libraries and for Pamflets, Clippings, Notes, Scrap Books, Index rerums, etc. (1885)
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Panizzi, A.: Rules for the compilation of the catalogue (1841)
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Crestadoro, A.: ¬The art of making catalogues of libraries : or, a method to obtain in a short time a most perfect, complete, and satisfactory printed catalog of the British Museum Library / by a reader therein [i.e. A. Crestadoro] (1856)
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Arrhenius, S.: On the influence of carbonic acid in the air upon the temperature of the ground (1896)
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Dewey, M.: ¬A classification and subject index for cataloguing and arranging the books and pamphlets of a library (1876)
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- Abstract
- The selection and arrangement of the thousand headings of the classification cannot be explained in detail for want of space. In all the work, philosophical theory and accuracy have been made to yield to practical usefulness. The impossibility of making a satisfactory classification of all knowledge as preserved in books, has been appreciated from the first, and nothing of the kind attempted. Theoretical harmony and exactness has been repeatedly sacrificed to the practical requirements of the library or to the convenience of the department in the college. As in every scheme, many minor subjects have been put under general heads to which they do not strictly belong. In some cases these headings have been printed in a distinctive type, e. g., 429 =Anglo-Saxon=, under =ENGLISH PHILOLOGY=. The rule has been to assign these subjects to the most nearly allied heads, or where it was thought they would be most useful. The only alternative was to omit them altogether. If any such omission occurs, it is unintentional and will be supplied as soon as discovered. Wherever practicable the heads have been so arranged that each subject is preceded and followed by the most nearly allied subjects and thus the greatest convenience is secured both in the catalogues and on the shelves. Theoretically, the division of every subject into just nine heads is absurd. Practically, it is desirable that the classification be as minute as possible without the use of additional figures, and the decimal principle on which our scheme hinges allows nine divisions as readily as a less number. This principle has proved wholly satisfactory in practice though it appears to destroy proper co-ordination in some places. It has seemed best in our library to use uniformly three figures in the class number. This enables us to classify certain subjects very minutely, giving, for example, an entire section to Chess. But the History of England has only one section, as our scheme is developed, and thus the two might be said to be co-ordinated. The apparent difficulty in such cases is entirely obviated by the use of a fourth figure, giving nine sub-sections to any subject of sufficient importance to warrant closer classification. In history where the classification is made wholly by countries, a fourth figure is added to give a division into _periods_. As the addition of each figure gives a ten-fold division, any desired degree of minuteness may be secured in the classing of special subjects. The apparent lack of co-ordination arises from the fact that only the first three figures of these more important heads are as yet printed, the fourth figure and the sub-sections being supplied on the catalogues in manuscript. Should the growth of any of these sub-sections warrant it, a fifth figure will be added, for the scheme admits of expansion without limit.
