Description: Papers of Walter Valentine Balduf (1889-1969) professor of entomology (1922-1958), including correspondence (1962-1970), publications on insect parasites, caterpillars, bees and flies (1965-1970), research data sheets and notebooks of observations on birds (1937-1949) and insect parasites, wasps, bees and caterpillars (1950-1969). The series includes publications on the ecology of Great Lakes fishes (1934-1941).