41. [Technician working with a chemical in a dish, New Orleans, La.] Publication: [between 1914 and 1920] Subject(s): LaboratoriesLaboratory PersonnelUnited States. Public Health Service.
42. [U.S. Public Health and Marine Service Hospital exhibits at the Jamestown Ter-centennial Exposition, Sewells Point, Hampton Roads, Va.] Publication: [1907] Subject(s): LaboratoriesUnited States. Public Health and Marine Hospital Service.
43. [An alchemist in his laboratory] Author(s): Lémery, Nicholas, 1645-1715, author Publication: Paris: Laurent-Charles d'Houry, fils, 1756 Subject(s): AlchemyLaboratories
44. [Researchers with cholestenone-fed rat] Author(s): Pumphrey, Robert. Publication: 1957 Subject(s): LaboratoriesLaboratory PersonnelFredrickson, Donald S.
45. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)
46. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)
47. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)
48. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)
49. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)
50. [NIH- Unidentified Laboratory Photos] Subject(s): LaboratoriesNational Institute of Health (U.S.)