The Ohio state engineer.

v.1 no.2 1918; v.3 no.3 1920; v.4 no.4 1921; v.5 no.1 1921; v.5 no.4 1922; v.6 no.1 1922; v.6 no.2 1923; v.6 no.3 1923; v.6 no.4 1923; v.7 no.1 1923; v.7 no.3 1924; v.7 no.4 1924; v.8 no.1 1924; v.9 no.1 1925; v.9 no.3 1926; v.9 no.4 1926; v.10 no.1 1926; v.10 no.2 1927; v.10 no.3 1927; v.10 no.4 1927; v.11 no.1 1927; v.11 no.2 1927; v.11 no.4 1928; v.11 no.6 1928; v.11 no.7 1928; v.11no.1-4,6-7;v.12; v.12 no.2 1928; v.12 no.3 1929; v.12 no.4 1929; v.12 no.5 1929; v.12 no.6 1929; v.12 no.7 1929; v.13 no.1 1929; v.13 no.2 1929; v.13 no.3 1930; v.13 no.4 1930; v.13 no.5 1930; v.13 no.6 1930; v.13 no.7 1930; v.14 no.1 1930; v.14 no.2 1930; v.15 no.7 1932; v.17no.3 1934; v.17no.1-2,4-7;v.18; v.18 no.5 1935; v.18 no.7 1935; v.19-20 1935-1937; v.21-22 1937-1939; v.23no.6 1940; v.23-24 1939-1941; v.25-26 1941-1943; v.27-28 1943-1945; v.29-30 1945-1947; v.31 1947-1948; v.31-32 1947-1949; v.32 1948-1949; v.33-34 1949-1951; v.35 1951-1952; v.36; v.37 1953-1954; v.38 1954-1955; v.39 1955-1956; v.40 1956-1957; v.41 1957-1958; v.42 1958-1959; v.43 1959-1960; v.49 1965-1966; v.48no.1,v.48no.6,v.49no.4,v.49no.5v.49no.6,Nov.1967 1964-1967; v.52pt.2 1969-1970; v.54no.1,6 1971-1972; v.57 1973-1974; v.67-72 1983-1989; v.75no.3 1992; v.76no.2 1993; v.81no.1-2 1998; v.83no.1 1999; v.87no.2 2004; v.90no.3 2007; v.93 no.1 2009