Pennsylvania archaeologist.

v.1 1930; v.2:2,3:1-6; v.3-6 1932-37; v.4-8; v.7-11 1937-1941; v.10:3-v.11:2,4; v.12-16; v.12-17 1942-1947; v.18:3-4; v.18-23 1948-1953; v.24:1-2; v.24-26; v.25-27; v.27-29 1957-1959; v.28-29; v.30-31; v.30-32 1960-1962; v.32-33; v.33-35 1963-1965; v.34-39; v.36-40 1966-1970; v.40-41; v.41-43 1971-1973; v.42-43; v.44; v.44-45 1974-1975; v.45; v.46; v.46-47 1976-1977; v.47; v.48; v.48-49 1978-1979; v.49-50; v.50-51 1980-1981; v.51-52; v.52-53 1982-1983; v.53-54; v.54-56 1984-1986; v.55-56; v.57-58; v.57-59 1987-1989; v.59-61 (1989-91); v.60-62 1990-1992; v.62-63 (1992-93); v.63-65 1993-1995; v.66-68 1996-1998; v.69-71 1999-2001; v.72-75 2002-2005; index:v.1/25 1954-1956