Annual report of the Director to the Board of Trustees for the year ... / Field Columbian Museum.

1, no. 6

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

6, no. 4

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

6, no. 3

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

Annual report of the Director to the Board of Trustees for the year ... / Field Columbian Museum.

1, no. 4

Annual report of the Director to the Board of Trustees for the year ... / Field Columbian Museum.

1, no. 2

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

8, no. 1

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

5, no. 2

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

1954

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

4, no. 4

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

1956

Annual report of the Director to the Board of Trustees for the year ... / Field Columbian Museum.

2, no. 5

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

1943

Annual report of the Director to the Board of Trustees for the year ... / Field Museum of Natural History

6, no. 2