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

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42. P.S. Carley at a Malaria Survey Section's camp at Lake Huleh, Palestine

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

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44. Participants at the Walter Reed Commemoration Meeting onstage at the Agricultural Research Station in Beltsville, Maryland

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45. Pasteur Institute at Brazzaville, Belgian Congo

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46. Pineapple plantation near Nambour, Queensland, Australia

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

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48. Raft tank and temple at Madurai, India

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49. Rest house at Brazzaville, Belgian Congo

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50. Rest house at Oshogbo, Nigeria

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51. Rockefeller Foundation doctors crossing on a ferry near Leesburg, Georgia

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52. Rockefeller Institute for Medical Research

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

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54. Ruth and Gertrude Sawyer with Freda Bage at their bungalow "Kudsia" in Colombo, Ceylon

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

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56. Sawyer children in aboriginal costumes, Brisbane, Australia

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57. Sawyer family at their bungalow "Kudsia" in Colombo, Ceylon

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58. Sawyer family home on Circle Drive in Hastings-on-Hudson, New York

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59. Sawyer family home on Ferndale Drive in Hastings-on-Hudson, New York

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60. See-saw water pump for irrigation, Madras, India

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