31. [One safe way of handling a rat, New York, N.Y.] Publication: [194-?] Subject(s): Rodent ControlUnited States. Public Health Service.
32. [Three PHS medical officers in uniform of the early 20th century] Publication: [19--?] Subject(s): United States. Public Health Service.
33. [Men working in a lab, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): LaboratoriesLaboratory PersonnelUnited States. Public Health Service.
34. [Technician working with a chemical in a dish, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): LaboratoriesLaboratory PersonnelUnited States. Public Health Service.
35. [USPHS Sanitary Group, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): Plague -- prevention & controlUnited States. Public Health Service.
36. [U.S. Public Health Service laboratory workers, New Orleans, La.] Publication: [between 1914 and 1920]] Subject(s): Laboratory PersonnelUnited States. Public Health Service.
38. [U.S. Public Health Service Sanitary District no. 2, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): Plague -- prevention & controlUnited States. Public Health Service.
39. [U.S. Public Health Service personnel] Publication: [between 1914 and 1920] Subject(s): Plague -- prevention & controlAfrican AmericansUnited States. Public Health Service.
40. [U.S. Public Health Service Sanitary District No. 7, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): Plague -- prevention & controlAfrican AmericansUnited States. Public Health Service.