The American neptune.

v.1 1941; v.2 1942; v.3 1943; v.4 1944; v.5 1945; v.6 1946; v.7 1947; v.8 1948; v.9 1949; v.10 1950; v.11 1951; v.12 1952; v.13 1953; v.14 1954; v.15 1955; v.16 1956; v.17 1957; v.18 1958; v.19 1959; v.20 1960; v.21 1961; v.22 1962; v.23 1963; v.24 1964; v.25 1965; v.26 1966; v.26-27 1966-1967; v.27 1967; v.28 1968; v.29 1969; v.30 1970; v.31 1971; v.32 1972; v.33 1973; v.33-34 1973-74; v.34 1974; v.35 (1975); v.35-36 1975-76; v.36 (1976); v.37 (1977); v.37-38 1977-78; v.38 (1978); v.39 (1979); v.39-40 1979-80; v.40 (1980); v.41 (1981); v.41-42 1981-82; v.42 (1982); v.42-43 1982-1983; v.43 (1983); v.44-45 1984-85; v.44-45 1984-1985; v.46-47 1986-1987; v.48-49 1988-1989; v.50-51 1990-1991; v.52-53 1992-1993; 29-30; 36-37; 38-39; 40-41; index v.41-45; index v.1-5 1941-45; index v.6-10 1946-50; index v.16-20 1956-60; v.5 1945 index 1-5; index v.1-5; index v.6-10; index v.21-25