syntheses were not available in any bibliographic classification except the Universal Decimal
Classification (UDC). In addition, SC contained ìCategorical Tables and Index: Tables of
Categories, Forms, Etc., for the Subdivision of Subjectsî (1914: 37-39). The Categorical Table is
a list of elements that can be added to any division or subdivision in the schedules. These
elements are preceded by a period (.) and cannot be expanded or synthesized. For example,
Economics in the Categorical Table is .760. Thus, the economics of universities would be A180
[universities] combined with .760, i.e., A180.760 and the economics of musical competitions
would be C798 [musical competitions] combined with .760, i.e., C798.760. In the third edition of
SC, there are 980 entries in the Categorical Table. Although they are not all suitable for
subdividing every class in the main schedules, the idea of combining any main schedule topic
with any element from the Categorical Table appears to be unique in bibliographic classificat