41. [Cystoscopy: Nitze's cystoscope showing probe channel, urethral probe, and bulb illumination] Publication: 1907
43. A.A. Surgeon Weyer Publication: [between 1907 and 1909] Subject(s): Plague -- prevention & controlHealth PersonnelSan FranciscoUnited States. Public Health and Marine Hospital Service.
44. [Tagged dead rat outstretched on a paper-covered surface, San Francisco, Calif.] Publication: [between 1907 and 1909] Subject(s): Rodent ControlSan Francisco
45. Tagging Morning Catch Publication: [between 1907 and 1909] Subject(s): Plague -- prevention & controlRodent ControlSan FranciscoUnited States. Public Health Service.
46. [A liquid-ammunition car, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): Communicable Disease ControlPlague -- prevention & controlHorsesRodent ControlSan FranciscoUnited States. Public Health and Marine Hospital Service.
47. [Backyard of a dwelling, San Francisco, Calif.] Publication: [1907 or 1908] Subject(s): San Francisco
48. [Two men dissecting rats nailed to shingles, San Francisco, Calif.] Publication: [between 1907 and 1909] Subject(s): Communicable Disease ControlDissectionLaboratory PersonnelPlague -- prevention & controlSan Francisco
49. [Man seated next to dead squirrels] Publication: [between 1907 and 1909] Subject(s): Communicable Disease ControlPlague -- prevention & controlRodent Control
50. [Man holding a rifle, surrounded by dead squirrels] Publication: [between 1907 and 1909] Subject(s): Plague -- prevention & controlRodent Control