Issues held; Aug 1936 (vol. 3 no. 8), Apr 1939 (vol. 6 no. 4), May-Jun 1955 (vol. 22 nos. 5-6), Oct 1957 (vol. 24 no. 10), 1958 (vol. 25), Jul 1959 (vol. 26 no. 7), Aug-Oct 1960 (vol. 27 nos. 8-10), 1961 (vols. 28-29 missing Apr), 1962 -1988 (vols. 25-56) , missing issues for Sep 1963 (vol. 31 no. 9), Oct 1973 (vol. 41 no. 10), Autumn 1977 (vol. 45 no. 3), 1982 (vol. 50 nos. 3 and 5), and 1983 (vol. 51 no. 1). For years 1989 to 1992 issues held are 1989 (vol. 57 no. 3), and 1990-1992 (vol. 58 nos. 2-5).