POPULAR SCIENCE
1932 / 7
1933 / 1-5
1935 / 3-8 and 10-12
1936 complete
1937 complete
1938 complete
1939 complete
1940 complete
1941 complete plus seven duplicates
1942 two complete sets
1943 two each of 1-6 plus 11-12
1944 all except 11
1945 all except 11
1946 complete
1947 complete
1948 complete
1949 complete
1950 complete plus two duplicates
1951 all except 3
1952 complete
1953 all except 10
1955 complete plus 4 duplicates
1956 complete plus 2 duplicates
1957 / 2-12
1957 / 1-4, 7, 8, 10-12
1958 issues 1, 2, 3, 4, 6, 8, 11, 12
1959 issues 1, 2, 3, 5 duplicate, 6, 10, 11, 12
1960 complete
1961 all except 2
1962 complete plus duplicates of 2 and 8
1963 issues 1, 2, 5, 6, 7, 12
1974 / 9 & 12
1975 / 2 & 8
1976 / 8 & 12
1977 issues 1, 2, 3, 5, 6, 7, 8, 9, 10, 11
1978 / 4
1981-1988 eight issues
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