"A cumulative author and subject list to a selected list of Catholic periodicals."
Editor: L. A. Leavey.
Vol. for 1930/33 forms the first permanent volume in the series of four-year cumulations, and supersedes the two annual volumes for 1930 and 1931. The range of the index extends in a few cases as far back as January 1929.
Issued also in annual cumulations (In Old Catalog under: Catholic periodical index [Annual cumulation])