31. [Man holding a rifle, surrounded by dead squirrels] Publication: [between 1907 and 1909] Subject(s): Plague -- prevention & controlRodent Control
32. Preparing poison bait Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlRodent ControlSan Francisco
33. [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.
34. [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.
35. [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
36. [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.
37. 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.
38. [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.
39. [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.
40. [Men watching smoke rising from debris, San Francisco, Calif.] Publication: [between 1907 and 1909] Subject(s): Communicable Disease ControlPlague -- prevention & controlUnited States. Public Health and Marine Hospital Service.