31. Preparing poison bait Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlRodent ControlSan Francisco
32. [U.S. Public Health and Marine Hospital Service workers using pick axes, shovels, and rakes to clean debris from a former backyard rat-nesting area, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlRodent ControlSan FranciscoUnited States. Public Health and Marine Hospital Service.
33. [Enforcing science and health, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlSan FranciscoUnited States. Public Health and Marine Hospital Service.
34. [Six laboratory workers preparing dead rats for examination during the antiplague campaign, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlDissectionLaboratory PersonnelSan Francisco
35. [Health workers at the United States Public Health Marine Hospital Service Headquarters, Fourth Provisional Plague District, San Francisco, Calif.] Publication: [1907] Subject(s): Plague -- prevention & controlSan FranciscoUnited States. Public Health and Marine Hospital Service.
36. S[an] F[rancisco] Plague Campaign 1907-8: "Creating an atmosphere." Sprinkling lime Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlSan FranciscoUnited States. Public Health and Marine Hospital Service.
37. [Eight public health service workers (?) (full-length portrait, standing, facing front) holding buckets filled with rat bait (?), San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlSan FranciscoUnited States. Public Health and Marine Hospital Service.
38. [Disinfecting (?) crew and horse and wagon, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlSan FranciscoUnited States. Public Health and Marine Hospital Service.
39. [Male plague victim (close-up three-quarter length portrait, facing front) seated, arms crossed against his chest, San Francisco, Calif.] Publication: [between 1907 and 1909] Subject(s): San Francisco
40. [Male plague victim (three-quarter length portrait, facing front) standing, San Francisco, Calif.] Publication: [between 1907 and 1909] Subject(s): San Francisco