[212] See his important article, "Petzholdt redivivus. Zur Theorie und Praxis eines allgemeinen internationalen Bibliographienverzeichnisses," _Zentralblatt für Bibliothekswesen_, LXIV (1950), 413-438. Bibliography I indicate the libraries where the rare books cited below may be found by the following abbreviations: CU (University of California, Berkeley); DLC (Library of Congress); ICN (The Newberry Library, Chicago); MH (Harvard University Library); NN (New York Public Library). Books for which no locations are given will be found in most large libraries. I have not tried to record all the copies owned in the United States. Besterman, Theodore. _A World Bibliography of Bibliographies._ London, 1939-1940. Pp. xxiv, 588; [iv], 644. 2d ed.; London, 1947-1949. Pp. xxviii, cols. 1450; [i], cols. 1451-3196; [i], cols. 3197-4111. 3d ed.; Geneva, 1955-. The author index in the third volume of the second edition is printed in three columns. The second edition is cited as Besterman. Reviewed: Vilhelm Grundtvig, "En Verdensbibliografi over Bibliografier," _Nordisk tidskrift för bokväsen_, XXVII (1940), 58-65; Marc Jaryc, _Papers of the Bibliographical Society of America_, XXXVI (1942), 321-324. Beughem, Cornelius a. _Bibliotheca bibliothecarum._ Never published. _Bibliographia bibliographica_, I (1898)-VII (1904). Bibliographia universalis, Contribution No. 31. Brussels: Institut Internationale de Bibliographie, 1900-1906. For a collation see Besterman, I, cols. 324-325 (only vols. I-VI). The first five volumes were issued with a new titlepage as _Bibliotheca bibliographica universalis ... 1898-1902_ (Brussels, 1904. DLC). _Bibliographic Index. A Cumulative Bibliography of Bibliographies. 1937-1942._ New York, 1945. Pp. [xxxiii], 1780. Printed in two columns. _----. ---- 1943-1946._ New York, 1948. Pp. [xx], 831. Printed in two columns. _The Bibliographic Index_ appears in quarterly issues, which are cumulated in annual volumes. The first annual volume was that for 1937 and was issued in 1938. The annual volumes are cumulated in volumes of irregular extant. For a collation see Besterman, I, cols. 328-329. Reviewed: H. B. Van Hoesen, _The Library Quarterly_, X (1940), 272-274. _Bibliographie des Bibliotheks- und Buchwesens._ "Beihefte zum Zentralblatt für Bibliothekswesen," XXIX and subsequent issues (not continuously numbered). Bearbeitet von Albert Hortzschansky. Leipzig, 1905-1925. There were no annual issues for 1913-1921. It was continued by the _Internationale Bibliographie des Buch- und Bibliothekswesens_ (which see). For a collation see Besterman, I, cols. 325-326. Bohatta, Hanns, Walter Funke, and Franz Hodes. _Internationale Bibliographie der Bibliographien._ Frankfurt a.M., 1939-1950. Pp. 652. Reviewed: Theodore Besterman, _The Library_, 4th Ser., XXII (1943), 49-52.