1. Yellow Fever Laboratory, Bahia, Brazil

Date:

12 June 1934

2. Nurses' House and Central Office of the Yellow Fever Service, Rio de Janeiro

Date:

June 1934

3. The Central Office of the Yellow Fever Service, Rio de Janeiro

Date:

June 1934

4. Fred L. Soper and Alexander Burke crossing a bridge to inspect the site of a yellow fever infection near Coronel Ponce, Mato Grosso, Brazil

Date:

18 June 1934

5. Portrait of Mr. Lisboa, village telegraph officer, with Fred L. Soper and Alexander Burke in Coronel Ponce, Mato Grosso, Brazil

Date:

18 June 1934

6. Wilbur A. Sawyer and Fred L. Soper after the arrival of the airplane PP-CAO in Cuiaba, Mato Grosso, Brazil

Date:

15 June 1934

7. Group photo after Wilbur A. Sawyer's arrival in Cuiaba, Mato Grosso, Brazil

Date:

15 June 1934

8. Wilbur A. Sawyer's caravan and guides on the road to Coronel Ponce, Mato Grosso, Brazil

Date:

17 June 1934

9. Fred L. Soper and Amaral Machado in the doorway of the Health Department building, Bahia, Brazil

Date:

11 June 1934

10. PP-CAO, the "flying cow" airplane, in Corumba, Brazil

Date:

15 June 1934