TESTS ON ABSTRACTS JOURNALS: COVERAGE OVERLAP AND INDEXING Available to Purchase

In a previous paper (J. Doc. 20 (4) 1964, 212–35) a series of tests on the coverage, overlap, and indexing of abstracts journals were described. Briefly, these were carried out by selecting recent, comprehensive bibliographies on specific subjects, searching the appropriate abstracts journals via the author indexes to determine the number of references given in the bibliography that were abstracted, then consulting the subject indexes to try to locate those references which are known to have been abstracted. A further eight bibliographies have been studied, and the results are reported here.