History and Philosophy of Logic is abstracted and indexed in: America: History and Life; British Library Inside; EBSCO Databases; European Index for the Humanities; Historical Abstracts; History of Science, Technology and Medicine Database; IBZ (International Bibliography of Periodical Literature in the Fields of Art + Humanities + Social Sciences); ISI Science Citation Index Expanded™; Isis Current Bibliography for the History of Science; Iter; Mathematical Reviews/MathSciNet; New Jour; Philosopher's Index; SciBase; Zentralblatt MATH/Mathematics Abstracts; and Zetoc.