1. Massachusetts General Hospital

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2. Wilbur A. Sawyer and fellow medical residents at Massachusetts General Hospital

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3. Wilbur A. Sawyer as a medical resident at Massachusetts General Hospital

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4. Wilbur A. Sawyer and fellow medical residents at Massachusetts General Hospital

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5. Wilbur A. Sawyer and fellow medical residents at Massachusetts General Hospital

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6. Wilbur A. Sawyer and fellow medical residents at Massachusetts General Hospital

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7. Wilbur A. Sawyer at the California State Hygienic Laboratory

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8. Ruby Cunningham opening a dog's head at the California State Hygienic Laboratory

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9. Wilbur A. Sawyer and Esther Skolfield in the Pasteur Institute of the California State Hygienic Laboratory

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10. Wilbur A. Sawyer at city hall in Hanford, California, investigating a typhoid epidemic

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11. Wilbur A. Sawyer and his staff of the State Hygienic Laboratory in Hanford, California

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12. The Sawyer home on T Street, Sacramento, California

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13. Wilbur A. Sawyer, daughter Peggy, and Mrs. Calder at the University of California Infirmary

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14. Hookworm Campaign central office, College Road, Brisbane, Australia

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15. Hookworm Campaign central office stockroom, College Road, Brisbane, Australia

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16. Wilbur A. Sawyer as Director of the Rockefeller Foundation Hookworm Campaign in Australia

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17. The hospital at Townsville, Queensland, Australia

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18. Pineapple plantation near Nambour, Queensland, Australia

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19. Train for passengers over the sugar railroad, Australia

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20. S. M. Lambert in front of the office of the Hookworm Campaign in Bowen, Queensland, Australia

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