Bulletin / Chicago Natural History Museum.

v. 25 (1954)

Bulletin / Chicago Natural History Museum.

v. 36 (1965)

Annual report / Chicago Natural History Museum.

1964

Bulletin / Chicago Natural History Museum.

v. 27 (1956)

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1962

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1950

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1944

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1954

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1956

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1943

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1948

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1957

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1945

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1947

Report of the Director to the Board of Trustees for the year ... / Chicago Natural History Museum.

1955